Res: [tied] Senmurv

What would be the origin of sinmurv (Avest. saena m&r&Go:)? A reflex of the Mesopotamian dog-headed, winged demons? A close relative of giant bird Garuda? A distant link to Norse eagle-winged giant Hraesvelgr ("corpse-swallower")?

Avestan saena m&r&Go: = Sansk. s^yena mR.ga; s^yena/saena < *k^yeino- "dark-coloured bird of prey" (cf. Greek iktinos "kite" <*t-kyi:no- ?)
m&r&rGo:/mR.ga < *mRg(W)o- (akin to Greek mermnos? "kind of bird of prey")

Would it be a kind of PIE mythical giant bird.

JS Lopes