köken: Borrowed from Old French lait, leit (“unpleasant, horrible, odious”), of Germanic origin, from Low Frankish *laiþ (“unpleasant, obstinate, odious”) from Proto-Germanic *laiþaz (“sorrowful, unpleasant”), from Proto-Indo-European *leyt- (“unpleasant”). Akin to Old High German leid (“unpleasant, odious”) (German leid (“unfortunate”), Leid (“grief”)), Old Norse leiþr (“odious”), Old English lāþ…
köken: From Proto-Turkic *čẹr (“rotten, foul; to rot; illness; dirt; to be sick, ill; rot; glue; anguish, sorrow”) whence also Azerbaijani çürümək (“to rot”); alternatively from Persian چرک (čerk). However, it has been proposed that the latter Persian term is a Turkic borrowing itself (ibid.).
köken: Etymology tree Latin paedor Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin paedidus From paedor (“nastiness, dirt, filth”) + -idus.
köken: Etymology tree Esperanto malpura Russian -яга (-jaga)der. Proto-Indo-European *méǵh₂s Proto-Hellenic *mégas Ancient Greek μέγᾰς (mégăs)der. Esperanto -eg- Esperanto malpurega From malpura (“dirty”) + -eg-.