Proto-Mongolian: *sirmö- / *sirbö-
Meaning: sinew
Russian meaning: жила, нерв, сухожилие
Written Mongolian: sirbüsü(n), sirmüsü(n) (L 716) Middle Mongolian: širmusu (SH), širbusun (HY 48), sirboṣu, sirboson (IM), širbusun (MA) Khalkha: šörmös(ön), šürbüs, šörvös(ön)
Buriat: šürbehe(n), šürmehe(n)
Kalmuck: šürwsn, šir(w)ǖsn
Ordos: šörwös, šörwösü
Monguor: šbuʒǝ (SM 370), šuluʒǝ (SM 385), (MGCD śurbusǝ) Comments: KW 371, MGCD 723. Oyr. širi < Mong. (?) monget-prnum,monget-meaning,monget-rusmean,monget-wmo,monget-mmo,monget-hal,monget-bur,monget-kal,monget-ord,monget-dag,monget-mgr,monget-reference,