English
fake-ass
From fake + -ass.
Formed from fake + -ass
Proto-West Germanic *fegōn ‘to clean up, polish’
Old Saxon fegōn
Middle Low German vēgen
German Low German fegen
English feague ‘to spruce up, embellish’
English fake
Today it means
adj Fraudulent, phony, insincere.
Language periods are conventional ranges, not dates for this word.
Etymograph / fake-ass