Ποσι^δηϊών , ῶνος, ὁ, sixth month in the Athenian and some Ionic calendars, Anacr.6, IG12.377.17; later Ποσι^δεών , in Att. inscrr., ib. 22.204.11 (iv B.C.), al., and at Delos, Tenos, Paros, ib.11(2).203 A32, 56 (iii B.C.), 12(5).872.43 (iii B.C.), SIG562.49 (iii B.C.) written Ποσειδεών in one inscr., ib.1017.10 (Sinope, iii B.C.), and in codd. of Arist.HA543a11, 570a32, etc.:—Aeol.(?) Ποσι^δάων , Hemerolog.Flor.