ὅνδε

From LSJ

οὐ καταισχυνῶ τὰ ὅπλα τὰ ἱερά → I will never bring reproach upon my hallowed arms

Source

French (Bailly abrégé)

ὅς et suff. –δε = εἰς ὅν;
de ὅς relat.
de ὅς poét. p. ἑός.

Russian (Dvoretsky)

ὅνδε: adv. = εἰς ὅν.