vexabat
form analysis and translation based on Perseus (Version 2010):

3 S IMP IND ACT
vexo V	to shake, jolt, toss violently

Helmut Schmid's TreeTagger with Latin data by Gabriele Brandolini: vexo V:IND
Georges, Ausführliches lateinisch-deutsches Handwörterbuch, 8. Aufl. (1913)
vexo, āvī, ātum, āre (Intens. v. veho), stark bewegen, schütteln, erschüttern, I) eig.: vis venti montes vexat, Lucr.: in turba vexatus, hin und her gestoßen, Suet.: venti vexant nubila, Ov., rates, Verg.: (rector) per confragosa vexabitur, wird hin und her gestoßen werden, Cic. de rep. 2, 68 (aus (show full text)
Lewis & Short, A latin dictionary (1879)
vexo vexo (inf. vexarier, Verg. Cir. 480), āvi, ātum, 1, v. freq. a. veho, orig., to shake, jolt, toss in carrying; hence, in gen., to move violently, to shake, agitate. Lit. (rare; syn. quatio): vexasse grave verbum est, factumque ab eo videtur, quod est vehere; in quo (show full text)
Gaffiot, Dictionnaire latin-français (2016, ex 1934), merci à G. Gréco, M. De Wilde, B. Maréchal, K. Ôkubo!
vexo vexō, āvī, ātum, āre (intensif de veho), 1 remuer violemment, secouer, ballotter : Gell. 2, 6, 5 ; Cic. Rep. 2, 68 ; Lucr. 6, 430 ; Virg. B. 6, 76 2 [fig.] a) tourmenter, persécuter, maltraiter : socios Cic. (show full text)
Дворецкий И.Х., Отличный латинско-русский словарь (1976)
vexo vexo, avi, atum, are [intens. к veho] 1) швырять, кидать (navigia in periculum Lcr): classis vexata tempestatibus VP швыряемый бурями флот; in turba vexari Su пострадать от давки; 2) разгонять, гнать (nubilacaeli O); 3) сотрясать, колебать (montes supremos Lcr); 4) тревожить нападениями (show full text)