ἐξάπινα

ἐξάπιν‐α [απ], later form of ἐξαπίνης, LXX Nu. 4.20, Ev.Marc. 9.8, PGiss. 1.68.6 (ii A. D.), Procop. Aed. 2.11.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project