ἐψιλόν

From LSJ

ἀλλὰ τῷ ὕψει τῶν θείων ἐντολῶν σου → but by the sublimity of thy divine commandments

Source

Russian (Dvoretsky)

ἐψιλόν: правильнее ἒ ψιλόν см. ψιλός.