ὑποκύπτω · hypokyptō — LSJ
stoop under a yoke, bowed to the, yoke, bow down, bow low, stoop
stoop under a yoke, Μῆδοι ὑπέκυψαν Πέρσῃσι bowed to the Persian yoke, Hdt. 1.130, cf. 6.25, 109; κύνες τοῖς ἀνθρώποις ὑποκύπτοντες Aesop. 266: abs., of suppliants, bow down, bow low, ἱκετεύουσιν ὑποκύπτοντες Ar. V. 555 (anap., where cod. R has ὑποπίπτοντες), cf. Luc. Nav. 30, Nigr. 21; so of animals drinking, ὑποκύψαντα . . πιεῖν ὥσπερ βοῦν (v.l. ἐπικ-) X. An. 4.5.32; of the victim at a sacrifice, θύεται δέ, αἰ μέγ κα ὑποκύψει, τᾷ Ἱστίᾳ prob. in SIG 1025.20 (Cos); also ὑ. ἐπὶ τὰ ὀπίσθια σκέλη Ar
II stoop
c. acc., ὑ. τὰν τύλαν stoop it so as to let a load be put on, Ar. Ach. 954.