A.ibo) used as fut. of ὑπέρχομαι, steal secretly upon one, steal a march on, c. acc., “ἡ τυραννὶς ὡς λάθρᾳ γ᾽ ἐλάνθαν᾽ ὑπιοῦσά με” Ar.V.465 (lyr., s. v. l.); “τοὺς βασιλέας ὑπῄει δέος” Paus.7.1.7; “ὑπῄει ἐπῶν ἡμᾶς . . μνήμη” Id.10.4.2; also ὕπεισί με . . it occurs (or will occur) to me, Aristid.1.448 J.: rarely c. dat., “ὑπῄει μοι τὸ γιγνόμενον” Plu.2 652b.
II. fall back, retire, Hdt.4.120.