κατα-σείω · kata-seiō — LSJ
shake down, throw down, οἰκοδομήματος ἐπὶ μέγα Th. 2.76; τεῖχος, τοῦ τείχους ἐπὶ μέγα, Arr. An. 1.19.2, 2.23.1; σεισμὸς κ. τὴν πόλιν Ael. VH 6.7 :—Pass., fall down, Ph. 2.512; of a lionʼs mane, αὐχένος ἐκ λασίοιο χαίτη -εσείετο Pancrat. Oxy. 1085.21: metaph., κ. ἀκροατοῦ ὦτα Philostr. VS 2.29; νόμους Procop. Arc. 27.33; κατέσεισεν ἅπαντα καὶ κατεβρόντησε Eun. Hist. p.256 D.; ἕως κατέσεισε until he laid him on the floor (with drinking), Men. 8, cf. Philem. l.c., Ath. 10.431c.
impel, drive headlong, νεανίσκον εἰς τὸν μανιώδη καὶ σφαλερὸν τῆς βασιλείας ἔρωτα Eun. Hist. p.235 D., cf. p.267 D.:—Pass., πρὸς τὸ λέγειν κ. ib. p.223 D.
in Surgery, treat by shaking, Hp. Art. 42:—Pass., ib. 43.
κατασείσας τὴν χεῖρα with a motion of the hand, Act.Ap. 19.33; κ. ἱκετηρίας J. BJ 2.21.8; κ. τὰ ἱμάτια, by way of signal, Plu. Pomp. 73: more freq. c. dat., κ. τῇ χειρί beckon with the hand, Plb. 1.78.3, Hld. 10.7; κ. τῇ χειρὶ σιγᾶν Act.Ap. 12.17; κ. τῷ λύχνῳ ἅμα λέγων τὸν λόγον PMag.Lond. 46.453; κ. ὀθόναις Hld. 9.6: abs., κ. τινί beckon to another, as a sign for him to be silent, X. Cyr. 5.4.4; κ. τισὶν ἐπεξιέναι J. AJ 17.10.2; but also, shake the head in token of contempt, Phld. Vit. p.37 J.