motorius
From LSJ
τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
Latin > English (Lewis & Short)
mōtōrĭus: a, um, adj. motor,
I moving, that has motion (post-class.).
I Adj.: modus agendi, a stirring, bustling, noisy style of playing (opp. statarius), Don. Ter. Ad. prol. 24; id. ad argum. And.; Prisc. p. 590 P.—
II Subst.: mōtōrĭum, ii, n., the power of motion, Tert. Anim. 14.