aggress

• POS: Verb (intransitive)
• HYPHEN: ag=gress

CIDE DICTIONARY

aggress, v. i. [L. aggressus, p. p. of aggredi to go to, approach; ad + gradi to step, go, gradus step: cf. OF. aggresser. See Grade.].

•  To commit the first act of hostility or offense; to begin a quarrel or controversy; to make an attack; -- with on.  [1913 Webster]
•  take the initiative and go on the offensive, as in a game.  [WordNet 1.5]

aggress, v. t. 

 To set upon; to attack.  [1913 Webster]

aggress, n. [L. aggressus.].

 Aggression.  [1913 Webster]
"Their military aggresses on others."  [1913 Webster]