onset Copy link Outline I. Lit.1. impĕtus, ūs2. incursus, ūs (esp. charge of troops)3. incursio (more freq. = inroad, invasion)II. Fig., of violent language • onset: I. Lit.: 1. impĕtus, ūs: to make an o. upon any one, in aliquem i. facere, Caes. B. G. 1, 25: to withstand the o. (of troops), i. sustinere, ib. 3, 2; ferre, ib. 3, 19: v. attack. Join: incursio atque impetus [armatorum], Cic. Caec. 15, 44. 2. incursus, ūs (esp. charge of troops): at the very first o. the enemy were routed, primo statim inc. pulsi hostes, Liv. 2, 25: Caes.: Cic. 3. incursio (more freq. = inroad, invasion): Cic.: v. supr. (1): Hirt. To make an o. upon, adŏrior, invādo, etc.: v. to attack. II. Fig., of violent language: v. foll. art.