Op-pūgn', v. t.

(op-pūn'), v. t. [imp. & p. p. OPPUGNED; p. pr. & vb. n. OPPUGNING.] [O. Fr. oppugner, Sp. opugnar, It. & Lat. oppugnare, fr. Lat. ob and pugnare, to fight; pugna, a fight fist to fist, man to man, from pugnus, fist.] To fight against, whether in attack, resistance, or simple opposition; to attack; to oppose; to resist.

They said the manner of their impeachment they could not but conceive did oppugn the rights of Parliament. Clarendon.