Lewis & Short

ĭn-hortor, ātus sum, 1, v. dep., to incite, instigate to a thing: alicui canes, to set on, App. M. 8, p. 209, 9.
Hence, ĭn-hortātus, a, um, with pass. signif., instigated, set on: canes in eorum exitium inhortati, App. M. 9, p. 234, 15.