köken: Alteration of earlier *niechludźny, from nie- + chludzić (“to clean thoroughly, to have high standards of cleanliness”) + -ny. Related to Russian холя (xolja, “care, attention”), холуй (xoluj, “obsequious overattentive servant”), Silesian kludzić, and also Polish schludny (“neat, tidy”), from schludzić.
köken: From a stem *pŭtri-, commonly considered a close cognate to Old Irish othar m (“sickness”) (from a stem pŭtro-), from Proto-Indo-European *puH- (“rotten, foul”) (also the source of Latin pūs (“pus, foul matter”) and pūteō (“to be rotten”) and English foul; see links for additional cognates). It is uncertain why *pŭtri- and *pŭtro- have short *ŭ, since the rules for the evolution of preconsonantal…
köken: From Middle High German vūl, from Old High German fūl, from Proto-West Germanic *fūl, from Proto-Germanic *fūlaz, from Proto-Indo-European *puH-lo-s (“rotten, putrid”). Compare German faul.