ἥν

From LSJ

εἰπὼν ἃ θέλεις, ἀντάκουε ἃ μὴ θέλεις → if you say what you want, hear in response what you don't want

Source

French (Bailly abrégé)

acc. sg. fém. de ὅς, ἥ, ὅ;
poét. p. ἑήν, acc. sg. fém. de ἑός.

Greek Monotonic

ἥν: αιτ. ενικ. θηλ. της αναφορ. αντων. ὅς και της κτητ. αντων. ὅς, ἑός.

Russian (Dvoretsky)

ἥν:
I acc. sing. к ἥ (f к ὅς).
ἥν: II поэт. (= ἑήν) acc. sing. к ἑός.