κατασείω: 1 aorist κατεσεισα; 1. to shake down, throw down (cf. κατά, III. 1; (from Thucydides on)). 2. to shake: τήν χεῖρα, to make a sign by shaking (i. e. rapidly waving) the hand (Philo, leg. ad Gaium § 28; τάς χεῖρας, ibid. de Josepho § 36); of one about to speak who signals for silence, Act_19:33; hence, simply κατασείειν, τίνι, to make a sign, to signal with the hand to one, Xenophon, Cyril 5, 4, 4; Josephus, Antiquities 8, 11, 2; then, with a disregard of the origin of the phrase, the instrumental dative, τῇ χειρί was added, Polybius 1, 78, 3; Josephus, Antiquities 4, 8, 48; so of one about to make an address: Act_12:17; Act_13:16; Act_21:40; Josephus, Antiquities 8, 11, 2.

κατασείω kataseiō 4x to shake down or violently, Act_19:33 ; τὴν χεῖρα , or τῇ χειρι , to wave the hand, beckon; to signal silence by waving the hand, Act_12:17 ; Act_13:16 ; Act_21:40

** κατα -σείω , [in LXX : Da TH Bel 1:14 AR , 1Ma_6:38 * ;] 1. to shake down. 2. Of the hand, to shake or wave as a signal: τ . χεῖρα , Act_19:33 ; τ . χειρί , Act_13:16 ; id . c. dat. pers ., Act_21:40 ; seq . inf ., Act_12:17 .†

κατασείω [page 332] For this verb with the dat., as in Act_12:17 al., cf. the magical invocation P Lond 46 453 (iv/A.D.) (= I. p. 80) κατασείων τῷ λύχνῳ ἅμα λέγων τὸν λόγον κτλ . See also Hobart p. 103.

κατασείω fut. -σείσω "to shake down, throw down", Thuc. κατασεῖσαι τὴν χεῖρα "to shake or make a motion" of the hand; so, κ. τὰ ἱμάτια, by way of signal, Plut. ; but also, κ. τῇ χειρί "to beckon" with the hand, NTest. : absol., κατασείειν τινί "to beckon" to another, as a sign for him to be silent, Xen.

κατα-σείω [in LXX: Da TH Bel 1:14 AR, 1Ma.6:38 * ;] __1. to shake down. __2. Of the hand, to shake or wave as a signal: τ. χεῖρα, Act.19:33; τ. χειρί, Act.13:16; id. with dative of person(s), Act.21:40; before inf., Act.12:17.† (AS)