爱词海
factoryyoudaoicibaDictYouDict[factory 词源字典]
factory: [16] Latin factor, a derivative of facere ‘make’, meant ‘maker, doer’ (it was introduced into English in the 15th century as ‘agent’, but was not adopted as a mathematical term until the mid 17th century). Among its post-classical derivatives were late Latin factōrium ‘oil-press’ and medieval Latin factōria ‘establishment for factors or agents’.

It appears that the latter must have been the original source of the word factory in English, which at first meant ‘factorship, agency’. However, this does not fit in at all with its main modern sense ‘place where things are made’, first recorded in the early 17th century, which presumably must go back in some way to Latin factōrium.

=> fact[factory etymology, factory origin, 英语词源]
factotumyoudaoicibaDictYouDict
factotum: [16] A factotum is literally someone who ‘does everything’. It was coined from fac, the imperative form of the Latin verb facere ‘do’, and tōtum ‘all’ (source of English total). Originally it was used virtually as a name, in phrases such as ‘Master Factotum’, and it does not seem to have been until the late 18th century that it settled into its current role as an ordinary noun.
=> fact, total
olfactoryyoudaoicibaDictYouDict
olfactory: [17] Olfactory means etymologically ‘making smell’. It was borrowed from Latin *olfactōrius, a derivative of the verb olfacere ‘smell’. This in turn was a blend of olēre ‘smell’ (source of English redolent and related to odour) and facere ‘make’ (source of English fact, faction, etc).
=> odour, redolent
benefactor (n.)youdaoicibaDictYouDict
mid-15c., from Late Latin benefactor, from Latin phrase bene facere, from bene "well" (see bene-) + facere "to do" (see factitious). Translated in Old English as wel-doend.
de factoyoudaoicibaDictYouDict
Latin, literally "in fact, in reality," thus, "existing, but not necessarily legally ordained;" from facto, ablative of factum "deed, act" (see fact).
ex post factoyoudaoicibaDictYouDict
from Medieval Latin ex postfacto, "from what is done afterwards." From facto, ablative of factum "deed, act" (see fact). Also see ex-, post-.
factoid (n.)youdaoicibaDictYouDict
1973, "published statement taken to be a fact because of its appearance in print," from fact + -oid, first explained, if not coined, by Norman Mailer.
Factoids ... that is, facts which have no existence before appearing in a magazine or newspaper, creations which are not so much lies as a product to manipulate emotion in the Silent Majority. [Mailer, "Marilyn," 1973]
By 1988 it was being used in the sense of "small, isolated bit of true factual information."
factor (n.)youdaoicibaDictYouDict
early 15c., "commercial agent, deputy, one who buys or sells for another," from Middle French facteur "agent, representative" (Old French factor, faitor "doer, author, creator"), from Latin factor "doer, maker, performer," in Medieval Latin, "agent," agent noun from past participle stem of facere "to do" (see factitious). In commerce, especially "a commission merchant." Mathematical sense is from 1670s. Sense of "circumstance producing a result" is attested by 1816, from the mathematical sense.
factor (v.)youdaoicibaDictYouDict
1610s, "act as an agent, manage," from factor (n.). The use in mathematics is attested from 1837. Related: Factored; factoring.
factorial (n.)youdaoicibaDictYouDict
1816, in mathematics, from factor + -al (2). As an adjective from 1837 in mathematics; from 1881 as "pertaining to a factor."
factory (n.)youdaoicibaDictYouDict
1550s, "estate manager's office," from Middle French factorie (15c.), from Late Latin factorium "office for agents ('factors')," also "oil press, mill," from Latin factor "doer, maker" (see factor (n.)). From 1580s as "establishment of merchants and factors in a foreign place." Sense of "building for making goods" is first attested 1610s. Factory farm attested from 1890.
factotum (n.)youdaoicibaDictYouDict
"one who does all kinds of work for another," 1560s, from Medieval Latin factotum "do everything," from fac, imperative of facere "to make, do" (see factitious) + totum "all" (see total (adj.)).
ipso factoyoudaoicibaDictYouDict
Latin, literally "by that very fact."
malefactor (n.)youdaoicibaDictYouDict
mid-15c., from Latin malefactor, agent noun from past participle stem of malefacere "to do evil," from male "badly" (see mal-) + facere "to perform" (see factitious).
multifactorial (adj.)youdaoicibaDictYouDict
also multi-factorial, 1920, from multi- + factorial.
olfactory (adj.)youdaoicibaDictYouDict
1650s, from Latin olfactorius, from olfact-, past participle stem of olfacere "to get the smell of, sniff," from olere "emit a smell, give off a smell of" (see odor) + facere "to make" (see factitious).
Rh factoryoudaoicibaDictYouDict
1942, from the first letters of rhesus; so called because the blood group, and its effects, were discovered in the blood of rhesus monkeys (1941).
satisfactory (adj.)youdaoicibaDictYouDict
mid-15c., "capable of atoning for sin," from Middle French satisfactoire (14c.) and directly from Late Latin satisfactorius, from Latin satisfactus, past participle of satisfacere (see satisfy). Meaning "adequate" is from 1630s. Related: Satisfactorily; satisfactoriness.
unsatisfactory (adj.)youdaoicibaDictYouDict
1640s, from un- (1) "not" + satisfactory (adj.). Related: Unsatisfactorily; unsatisfactoriness.
manufactoryyoudaoicibaDictYouDict
"A factory", Early 17th century (denoting a manufactured article): from manufacture, on the pattern of factory. More factory from late 16th century:The first factories were far from any urban area, in India and southeast Asia. A factory in the late 16th century was a trading company's foreign base or station. The first use of the word in something like the modern sense came in the early 17th century, but until the Victorian era a building where goods were produced was more usually called a manufactory. The root of factory is Latin facere ‘to make or do’, the source of a great many English words such as fact, factor, feat, and feature (all LME). The sense ‘a place where things are made’ probably came from Latin factorium ‘oil press’.
olfactory bulbyoudaoicibaDictYouDict
"A bulb-like terminal expansion of the telencephalon on which the olfactory nerve fibres end", Mid 19th cent.; earliest use found in Robley Dunglison (1798–1869), physician and medical writer. From olfactory + bulb, apparently after post-classical Latin bulbus olfactorius.
factoid (n.)youdaoicibaDictYouDict[factoid 词源字典]
1973, "published statement taken to be a fact because of its appearance in print," from fact + -oid, first explained, if not coined, by Norman Mailer.
Factoids ... that is, facts which have no existence before appearing in a magazine or newspaper, creations which are not so much lies as a product to manipulate emotion in the Silent Majority. [Mailer, "Marilyn," 1973]
By 1988 it was being used in the sense of "small, isolated bit of true factual information."[factoid etymology, factoid origin, 英语词源]
factor (n.)youdaoicibaDictYouDict[factor 词源字典]
early 15c., "commercial agent, deputy, one who buys or sells for another," from Middle French facteur "agent, representative" (Old French factor, faitor "doer, author, creator"), from Latin factor "doer, maker, performer," in Medieval Latin, "agent," agent noun from past participle stem of facere "to do" (see factitious). In commerce, especially "a commission merchant." Mathematical sense is from 1670s. Sense of "circumstance producing a result" is attested by 1816, from the mathematical sense.[factor etymology, factor origin, 英语词源]
factor (v.)youdaoicibaDictYouDict
1610s, "act as an agent, manage," from factor (n.). The use in mathematics is attested from 1837. Related: Factored; factoring.
factorial (n.)youdaoicibaDictYouDict[factorial 词源字典]
1816, in mathematics, from factor + -al (2). As an adjective from 1837 in mathematics; from 1881 as "pertaining to a factor."[factorial etymology, factorial origin, 英语词源]
factoryyoudaoicibaDictYouDict[factory 词源字典]
factory: [16] Latin factor, a derivative of facere ‘make’, meant ‘maker, doer’ (it was introduced into English in the 15th century as ‘agent’, but was not adopted as a mathematical term until the mid 17th century). Among its post-classical derivatives were late Latin factōrium ‘oil-press’ and medieval Latin factōria ‘establishment for factors or agents’.

It appears that the latter must have been the original source of the word factory in English, which at first meant ‘factorship, agency’. However, this does not fit in at all with its main modern sense ‘place where things are made’, first recorded in the early 17th century, which presumably must go back in some way to Latin factōrium.

=> fact[factory etymology, factory origin, 英语词源]
factory (n.)youdaoicibaDictYouDict
1550s, "estate manager's office," from Middle French factorie (15c.), from Late Latin factorium "office for agents ('factors')," also "oil press, mill," from Latin factor "doer, maker" (see factor (n.)). From 1580s as "establishment of merchants and factors in a foreign place." Sense of "building for making goods" is first attested 1610s. Factory farm attested from 1890.
factotumyoudaoicibaDictYouDict[factotum 词源字典]
factotum: [16] A factotum is literally someone who ‘does everything’. It was coined from fac, the imperative form of the Latin verb facere ‘do’, and tōtum ‘all’ (source of English total). Originally it was used virtually as a name, in phrases such as ‘Master Factotum’, and it does not seem to have been until the late 18th century that it settled into its current role as an ordinary noun.
=> fact, total[factotum etymology, factotum origin, 英语词源]
factotum (n.)youdaoicibaDictYouDict
"one who does all kinds of work for another," 1560s, from Medieval Latin factotum "do everything," from fac, imperative of facere "to make, do" (see factitious) + totum "all" (see total (adj.)).
factual (adj.)youdaoicibaDictYouDict[factual 词源字典]
1834, formed from fact on model of actual. Related: Factually.[factual etymology, factual origin, 英语词源]
factureyoudaoicibaDictYouDict[facture 词源字典]
"The quality of the execution of a painting; an artist’s characteristic handling of the paint", Late Middle English (in the general sense 'construction, workmanship'): via Old French from Latin factura 'formation, manufacture', from facere 'do, make'. The current sense dates from the late 19th century.[facture etymology, facture origin, 英语词源]
facultyyoudaoicibaDictYouDict[faculty 词源字典]
faculty: [14] If one has a faculty for doing something, one finds it ‘easy’ to do. The word comes, via Old French faculte, from Latin facultās. This was a parallel form to facilitās (source of English facility [15]). Both were derived from Latin facilis ‘easy’ (whence English facile [15]), an adjective formed from the verb facere ‘do’. Since facilitās more closely resembled facilis, it retained its connotations of ‘easiness’, whereas by the classical period facultās had more or less lost them, coming to mean ‘capability, power’.
=> facile, facility[faculty etymology, faculty origin, 英语词源]
faculty (n.)youdaoicibaDictYouDict
late 14c., "ability, opportunity, means, resources," from Old French faculte "skill, accomplishment, learning" (14c., Modern French faculté) and directly from Latin facultatem (nominative facultas) "power, ability, capability, opportunity; sufficient number, abundance, wealth," from *facli-tat-s, from facilis (see facile).

Academic sense "branch of knowledge" (late 14c.) was in Old French and probably was the earliest in English (it is attested in Anglo-Latin from late 12c.), on notion of "ability in knowledge" or "body of persons on whom are conferred specific professional powers." Originally each department was a faculty; the use in reference to the whole teaching staff of an entire college dates from 1767. Related: Facultative. The Latin words facultas and facilitas "were originally different forms of the same word; the latter, owing to its more obvious relationship to the adj., retained the primary sense of 'easiness', which the former had ceased to have before the classical period." [OED]
fad (n.)youdaoicibaDictYouDict[fad 词源字典]
1834, "hobby, pet project" (adjective faddy is from 1824), of uncertain origin. Perhaps shortened from fiddle-faddle. Or perhaps from French fadaise "trifle, nonsense," which is ultimately from Latin fatuus "stupid." From 1881 as "fashion, craze," or as Century Dictionary has it, "trivial fancy adopted and pursued for a time with irrational zeal."[fad etymology, fad origin, 英语词源]