Random Sequence: oppugnancy

"Take but degree away, untune that string,
And hark what discord follows! Each thing melts
In mere oppugnancy: the bounded waters
Should lift their bosoms higher than the shores,
And make a sop of all this solid globe...."
--William Shakespeare, Troilus and Cressida, Act 1, Scene 3

oppugnancy (noun) = opposition; resistance

I just can't "oppug" (?) a word like this.