ὑφορμ-έω · hyphorm-eō — LSJ
lie at anchor in wait for others, Plb. 3.19.8, 34.3.2, Ael. NA 11.19, Charito 3.7, etc.: metaph., αἱ πόλεις ὑ. ἀλλήλαις D.Chr. 38.42; ὁ τοῦ κόλακος λόγος . . ὑ. τινὶ πάθει Plu. Adul. 2.61e; τὸ ὑφορμοῦν suspicion, Lib. Decl. 40 (προθεωρία).2, 46 (προθεωρία).2; τὰ ὑφορμοῦντα Sch. D. 1.1 (viii p.30 Dindorf).
lit., anchor under, ὑπὸ τὸ τεῖχος D.Chr. 11.116, cf. 7.2.