instigator Copy link Outline 1. auctor (gen. term, in good or bad sense)2. impulsor (one who influences for good or bad)3. concĭtātor (one who stirs up)4. instĭmŭlātor (v. rare) Join instimulator et concitator, Orat. pro Dom. 5, 11.5. instīgātor (not of the best age) Tac. H. 1, 38, extr. • instigator: 1. auctor (gen. term, in good or bad sense): cf. Liv. 2, 54, med., nec auctor quamvis audaci facinori deerat (? instigator): Caes. B. G. 5, 25. 2. impulsor (one who influences for good or bad): Join: auctor et impulsor [sceleris], Cic. Vat. 10, 24 (cf. suasor et impulsor, in good sense Cic. Att. 16, 7, init.). 3. concĭtātor (one who stirs up): i.s of riot, turbae ac tumultus c., Liv. 25, 4, fin.: Hirt. 4. instĭmŭlātor (v. rare) Join instimulator et concitator, Orat. pro Dom. 5, 11. 5. instīgātor (not of the best age) Tac. H. 1, 38, extr.