Proto-IE: *oner-
Meaning: dream
Armenian: anurǯ `Traum'
Old Greek: ónar n. `Traum, bes. Trugtraum; Traumbild; ónei̯ro-s, óneiro-n, aeol. ónoi̯ro-s `Traumbild, -gestalt', ánairon = óneiron, ánar = ónar (Cret.) Hsch.
Albanian: geg. ą́dɛr̄ɛ, tosk. ɛndɛr̄ɛ Traum
Russ. meaning: сон (сновидение)
References: WP II 180