froc

frock (clerical garment); the clerical profession; pants; trousers

From Middle French frocq (“cloth made of coarse wool”), from Old French froc (compare Late Latin hroccus (“frock”)), from Frankish *hrokk (“robe, tunic”), from Proto-Germanic *hrukkaz (“robe, garment, cowl”), variant of *rukkaz (“upper garment, smock, shirt”), from Proto-Indo-European *rug(')- (“upper clothes, shirt”). Cognate with Old High German hroch, roc (“tunic, smock, jersey”) (German Rock), Old Saxon rok (“mantle, jacket”), Old English rocc (“over-garment, jacket”).