Where does “arsa versa” come from?

arsa versa (English) comes from English arse, from Middle English ars, from Old French arz, from Latin artes, from Latin ars, from Proto-Italic artis, from Proto-Indo-European h₂értis, from Proto-Indo-European h₂er- — to fit, to fix, to put together.

Ancestry of “arsa versa”, step by step

arsa versa traces back through two separate lines of ancestry.

via English arse

StepLanguageWordMeaning
1EnglisharseThe buttocks or more specifically, the anus; A...
2Middle Englisharsarse, anus; bottom, buttocks; plural of art
3Old Frencharz
4Latinartessecond-person singular present active subjunctive...
5Latinarsart; skill, craft, handicraft, trade, power
6Proto-Italicartis
7Proto-Indo-Europeanh₂értisfitting
8Proto-Indo-Europeanh₂er-to fit, to fix, to put together

via English vice versa

StepLanguageWordMeaning
1Englishvice versaThe same but with the two things or people...
2Latinvice versathe position having been reversed
3Latinversusturned, changed, having been turned; towards,...
4Latinvertōto turn, turn oneself, direct one's way, to turn about, turn around, revolve
5Proto-Italicwertōto turn
6Proto-Indo-Europeanwert-to turn, to rotate
7Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

Words derived from “arsa versa

Every word from Proto-Indo-European h₂er-Every word from Proto-Indo-European h₂értisEvery word from Proto-Italic artis
arsa versa — Etymology, Origin & Word History | Etymology Explorer