Proto-IE: *g(ʷ)rn-
Meaning: back, shoulders, croup
Armenian: kurrn, gen. krran `Rücken'
Old Greek: ?? LS: gárkon n. 'axle-pin' (EM) = gárnon Poll., Hsch. {= to ésō tē̃s plḗmnēs sidḗrion, hò tòn áksona tríbei (Hsch.) - not found!}
Celtic: ? Ir gorūn, -ūin, gurrūn `Hüfte, Keule eines Tiers'
Russ. meaning: спина, плечи, круп
References: WP I 555 f