Gr. χοῖρος m., f. ‘(young) pig, piglet’. ”Probably represents *χορ- ος,, and in this case may be cognate with Alb. derr < ǵhoiro- 'swine'. Since wild pigs are brushed, it may also be related to χήρ 'hedgehog', which is related to Lat. ēr. In view of the limited distribution, we may wonder whether this etymon is a substrate word” (RB). Robert Beekes (with the assistance of Lucien van Beek). "χοῖρος" in: Etymological Dictionary of Greek. Indo-European Etymological Dictionaries Online. Edited by Alexander Lubotsky. Brill, 2014. Brill Online. November 18, 2014. < http://iedo.brillonline.nl/dictionaries/lemma.html?id=10274 >
Robert Farren, PIE culture words collection, 2017
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