ὕπειμι · hypeimi — LSJ
steal secretly upon, steal a march on, occurs, will occur) to
steal secretly upon one, steal a march on, c. acc., ἡ τυραννὶς ὡς λάθρᾳ γʼ ἐλάνθανʼ 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. QConv. 2.652b.
2 insinuate oneself into, favour
of persons, ὑ. τινά insinuate oneself into his favour, Id. Cic. 45, D.Chr. 4.10.
II fall back, retire
fall back, retire, Hdt. 4.120.
III motions, the urine will pass
Medic., τὰ ὑπιόντα motions, Hp. Aff. 11: impers., ταύτῃ ὕπεισι the urine will pass that way, Ruf. Ren.Ves. 3.17.