ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
con-vulsĭo: (-vols-), ōnis, f. convello, in medic. lang.,
I cramp, convulsion, Scrib. Comp. 165; Plin. 20, 15, 60, § 168; 29, 3, 13, § 55.
convulsĭō, ōnis, f. (convello), [médec.] convulsion : Scrib. Comp. 165 ; Plin. 20, 168.