Σινά
Could not find Σινάκην in Logeion dictionaries.
Σινάκην Proper-name noun: masculine accusative singular of Σινάκης
Strong 4614
indecl. (but τὸ Σιναῖον, FlJ, Ant., iii, 5, 1; τὸ Σιναῖον ὄρος, ib. ii, 12, 1), τό
Sinai (Ex 19:11, al.): Ac 7:30, 38, Ga 4:24, 25.†