soif

thirst; thirst, desire

“avoir soif” — to be thirsty

Etymology tree Proto-Indo-European *dʰegʷʰ- Proto-Indo-European *-éyti Proto-Indo-European *dʰgʷʰéyti Proto-Indo-European *dʰgʷʰey- Proto-Indo-European *-tis Proto-Indo-European *dʰgʷʰéytis Latin sitis Old French seif Old French soif French soif Inherited from Old French soif, from earlier seif, seit, from Latin sitis. The unetymological -f seems to have been inserted, following cases such as Old French noif (“snow”), possibly to avoid homophony with soit (“[may] it be”) and soi (“-self”).