μητρομιξία
From LSJ
ὁκόσα γὰρ ὑπὰρ ἐκτρέπονται ὁποίου ὦν κακοῦ, τάδε ἐνύπνιον ὁρέουσι ὥρμησε → for whatever, when awake, they have an aversion to, as being an evil, rushes upon their visions in sleep (Aretaeus, Causes & Symptoms of Chronic Disease 1.5.6)
English (LSJ)
ἡ,
A incest with one's mother, S.E.M.11.191.
German (Pape)
[Seite 180] ἡ, leibliche Vermischung mit der Mutter, Sext. Emp. adv. eth. 191.