to start a quarrel or be the first to attack
Origin of aggressfrom 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)