to start a quarrel or be the first to attack
Origin of aggress; from Classical Latin aggressus, past participle of aggredi, to attack, go to ; from ad-, to + gradi, to step
intransitive verbag·gressed, ag·gress·ing, ag·gress·es
To initiate an attack, war, quarrel, or fight.
Origin of aggressFrench agresser, from Latin aggredī, aggress-, to attack : ad-, ad- + gradī, to go; see ghredh- in Indo-European roots.
(third-person singular simple present aggresses, present participle aggressing, simple past and past participle aggressed)