Webster's Revised Unabridged Dictionary · 1913

Repugn

Repugn (r?-p?n") , transitive verb

[French répugner, Latin repugnare, repugnatum; pref. re- + pugnare to fight. See Pugnacious.]

To fight against; to oppose; to resist. [Rare]
Stubbornly he did repugn the truth. — Shakespeare