LSJ
ὁ, Syracusan form for πυρός, An.Ox. 1.362, cf. EM 724.33; found at Cyrene, Docum. ant. dell΄Africa Italiana 1.86, al. (iv BC); at Cos, SIG 1026.9, 1027.11; at Thera, IG 12(3).450.18; at Epidaurus, IG 4²(1).40.8, 66.38.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)