Dictionary entry

ὄναρ

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

* ὄναρ, τό,

indecl., used only in nom, and acc. sing. (the other cases are supplied by ὄνειρος), a dream: κατ’ ὄ. (in later writers only), in a dream, Mt 1:20 2:12, 13, 19, 22 27:19.†