Comments:An Eastern isogloss. See SKE 136, EAS 79, Whitman 1985, 202, 237, АПиПЯЯ 48, 290, Robbeets 2000, 103. The MKor. variant njǝm- in njǝ̀m-thòŋ 'heart' (which Lee 1958, 115 attempts to compare separately with Manchu ńaman), is most probably just a contraction in a compound < *mằńằm-thòŋ. {If the original meaning was 'front, protruding point', cf. perhaps Mong. mondaɣa, monduɣ 'high ground, mountains, peaks', Bur. mundarga 'woodless rocky summit', whence Manchu muŋGa 'hill, burial mound' ?}