προπέρυσι
προπέρῠσι, before a vowel προπέρι-σιν, Adv.
A). two years ago, Euthd. 272b , 20.33 , 33.25 , PThead. 16.4 (iv A. D.), cj. in 9.4 , etc.: but πρωπέρυσιν is Att. acc. to Adv. 166.25 , PS p.105 , and is required by the metre in 182 .