A.on the seventh day, “ἱδρώς” Hp.Aph.4.36; ἑ. πυρετός a fever recurring every seven days, Id.Epid.1.24: “ἑ. τραγῳδοί” Luc.Hist.Conscr.1: with a Verb, “διεφθείροντο ἑβδομαῖοι” Th.2.49, cf. X.HG5.3.19, Plu.Galb.7; “ἑ. ἡμέρα” PSI6.690 (i/ii A.D.).
2. seven days old, “τράγος” Horap.1.48.
II. ἑβδομ-αῖον , τό, monthly festival of Apollo, IG22.1357 (iv B.C.), cf. ἑβδομαγέτης: pl., Schwyzer 687 B4 (Chios, vii/vi B.C.), 726.6 (Milet., v B. C.).