ἀκήρ-υκτος · akēr-yktos — LSJ
unannounced, unproclaimed, ἀ. πόλεμος sudden war, Hdt. 5.81; also a war in which no herald was admitted, truceless, X. An. 3.3.5, Pl. Lg. 626a, Aeschin. 2.33; ἦν γὰρ ἄσπονδος καὶ ἀ. ὑμῖν πρὸς τοὺς θεατὰς πόλεμος D. 18.262; ἀ. ἔχθρα Plu. Per. 30.
without flag of truce, τὸ ἀ. τῆς ὁδοῦ App. Mith. 104. Adv. -τως, ἐφοίτων Th. 1.146; cf. foreg.
not proclaimed victor by heralds, inglorious, E. Heracl. 89, Aeschin. 3.230.
with no tidings, not heard of, S. Tr. 45, Nonn. D. 9.249.
unheralded, ἔρωτες ib. 48.653.