From Wiktionary, the free dictionary
From Proto-Mongolic *yambar derived from the interrogative root *ya. Compare Kalmyk ямаран (yamaran).
ямар • (jamar) (Mongolian spelling ᠶᠠᠮᠠᠷ (yamar))
- (interrogative) what kind, what, which, how
Энэ ямар ургамал вэ?- Ene jamar urgamal ve?
- What kind of a plant is this?