Комментарии:EAS 47, KW 223, ОСНЯ 1, 346, TMN 1, 471-472 ("altes indoeur. Lw." - ?), АПиПЯЯ 57-58, 292. Despite the latter source, Kor. hjǝ́ 'tongue' is to be separated - see a discussion in Miller 1998, who has (following Shiratori), instead compared Kor. kăro- (but, quite unjustly, separated PTM *xilŋü). The Korean reflex remains, however, questionable, since the word can also - following Martin 1996, 75 - be compared with Jpn. *kátár- 'tell', and thus derived from *k`ēro q. v.