Lewis Short
aggressus (adg-), a, um, Part. of aggredior.
Charlton T. Lewis, Charles Short, A Latin Dictionary
Lewis Short
aggressus | adg- (noun M) : (), , aggredior. *
* An attack, assault (cf. aggredior, II. B.), Dig. 36, 1, 17.
* An entering upon, beginning; opp. exitus (cf. aggredior, II. C.), Firm. Math. 2, 10.
Charlton T. Lewis, Charles Short, A Latin Dictionary