κατεγγῠ-άω · katengy-aō — LSJ
pledge, betroth, τινά τινι E. Or. 1079, 1675; γάμον θυγατρός τινι J. AJ 6.10.2:—Med., Parth. 5.3.
as law-term, make responsible, compel to give security, τινὰ πρὸς τὸν πολέμαρχον or πρὸς τῷ -χῳ, D. 32.29, 59.40, cf. Pl. Lg. 871e, PTeb. 490 (i B.C.), etc.; κ. τινὰ πρὸς εἴκοσι τάλαντα make him give security to the amount of 20 talents, Plb. 5.15.9; πρὸς δίκην τινά Plu. Tim. 37:—Pass., to be held to bail, D. 59.49; [ἐγγύην] κ. Pl. Lg. 872b.
sequester, put an embargo upon, πυρόν PAmh. 2.35.23 (ii B.C.).
seize as a security, ὑπὲρ ἀργυρίου τὴν ναῦν καὶ τοὺς παῖδας D. 33.11: metaph., bind, subject, τὸ ζῆν λύπαις αὐθαιρέτοις κ. Thales ap. Stob. 4.22.65:—Pass., πατρίοις ἔθεσιν κατηγγυημένος Apion ap. J. Ap. 2.2.
in Pass., undertake to do, c. inf., Plb. 3.5.8.