Contracted Verbs and Some Verbs in -ιω, -υω.—a. Verbs in -αω, -εω, -οω, which for convenience have been treated under the first class, properly belong here, y (
N.—The rare spellings ἀλυίω, θυίω, μεθυίω, φυίω indicate their origin from -yω.
b. So with stems in long vowels: δρῶ
Herbert Weir Smyth [n.d.], A Greek Grammar for Colleges; Machine readable text [info] [word count] [Smyth].