Comments:KW 348. A Western isogloss. The Turkic reflex is difficult: on the one hand, it is usually not distinguished from *jaŋak 'door post' (which actually can go back to a quite different source, see *p`i̯àŋk`i); on the other hand, it may also be a modification of *jag-ŋak and have a connection with TM *ǯegi 'chin' (ТМС 1, 281).