pentimento

英[ˌpentɪ'mentəʊ] 美[ˌpentə'mentoʊ]
  • [绘]经过修改或颜料遮盖的原来笔画[图象]之再现
pentimenti
Noun:
  1. the reappearance in a painting of an underlying image that had been painted over (usually when the later painting becomes transparent with age)