Second Aorist Optative.—The forms of the optative of the second aorist are made and inflected like those of the present except for the reduplication. Thus, in the active: θείην (θε-ίη-ν), σταίην (στα-ίη-ν), δοῖμεν (δό-ι_-μεν), δοῖεν (δό-ιε-ν). The shorter forms are preferred in the dual and plural, and poetry has only these; prose admits either the longer or the shorter forms.
a. In the 2 pl. cases of -ιη-τε (δοίητε) are more numerous than -ι-τε; but they usually lack metrical warrant.
b. Second aorists of stems in υ lack the optative in Attic.
Herbert Weir Smyth [n.d.], A Greek Grammar for Colleges; Machine readable text [info] [word count] [Smyth].