An assailment is an assualt or attack on another individual.
An assailment is an act of physically attacking someone with the intent to cause harm or injury. It is a form of assault where one person initiates violence against another.
An assailer is a person who assails, who attacks violently using words or force.
An assailant is a person who assails, who attacks violently using words or force.
advance, aggression, assailing, assailment, barrage, blitz, blitzkrieg, charge, defilement, dirty deed, drive, encounter, encroachment, foray, incursion, initiative, inroad, intervention, intrusion, invasion, irruption, mugging, offense, offensive, onrush, onset, onslaught, outbreak, push, raid, rape, rush, skirmish, storming, strike, thrust, violation, volley