Compound of ᡥᡠᡥᡠ (huhu, “blue”) + ᠨᠣᠣᡵ (noor, “lake”). From Classical Mongolian ᠬᠥᠬᠡᠨᠠᠭᠤᠷ (köke naɣur, literally “blue sea”).
ᡥᡠᡥᡠᠨᠣᠣᡵ • (huhu noor)