400 Years Ago a Prudish Aristocrat Censored This Artemisia Gentileschi Nude. Using Tech, an Italian Museum Has Revealed the Stunning Original Work
https://news.artnet.com/art-world/censored-artemisia-gentileschi-female-nude-revealed-2375778
https://en.wikipedia.org/wiki/Allegory_of_Inclination
Her other work is also well worth a look:
Heavy draperies added to censor the painting seem to follow the same shape on the lower body, and the article mentions Artemesia's delicate glazes under the overpainting.
So though the article doesn't categorically state that she painted this translucent veil, or if it is included in the digital reconstruction to indicate a query researchers were unable to resolve categorically, she included similarly diaphanous fabric in this nude https://upload.wikimedia.org/wikipedia/commons/b/b0/Artemisia_Gentileschi_-_Sleeping_Venus.JPG
Glaze! That's the word I couldn't remember earlier.
Eh, wash & glaze are kinda the same from our perspective as viewers - just differentiates type of solvent used, as determined by binding media.
Yeah, it only really matters with oils... need to go fat/thick over lean/thin otherwise the paint layers tenses and cracks off. Great fun