1. under the hand, in hand , (Odyssey by Homer)

2. of persons, under any one's hand, under command, subject , τινι (Herdotus Historicus), etc.; λαβεῖν τινα ὑποχείριον to get into one's power , (Euripides); ἔχειν τινὰ ὑπ. (Thucydides) (ML)