I.to shake, move to and fro, Hom.; σε. ἔγχος, μελίην to shake the poised spear, Il.; κάρα σει., in sign of discontent, Soph.:—also, σείειν τῆι οὐρᾶι Xen.
2.of earthquakes, which were attributed to Poseidon, Hdt.; absol., σείσας by an earthquake, Ar.: impers., σείει there is an earthquake, Thuc., Xen.
3.metaph. to shake, agitate, disturb, Pind., Soph.
4.in attic, to accuse falsely or spitefully, so as to extort hush-money, Ar.; cf. Lat. concutio.
II.Pass. to shake, heave, quake, of the earth, Il., Hdt.:—metaph. to be shaken to its foundation, τὸ τερπνὸν πίτνει σεσεισμένον Pind.; οἷς ἂν σεισθῆι θεόθεν δόμος Soph.
2.generally, to move to and fro, Il.: Pass., ὀδόντες ἐσείοντο his teeth were loosened, Hdt.; σεισθῆναι σάλωι Eur.
III.Mid. to shake something of one's own, Theocr., Anth.
2.like Pass. to shake oneself, to shake, Il.
