The Collaborative International Dictionary
Outrance
Outrance \Ou`trance"\ ([=oo]`tr[aum]Ns"), n. [F. See Outr['E].] The utmost or last extremity.
Combat [`a] outrance, a fight to the end, or to the death.
Wiktionary
outrance
n. (context obsolete English) The furthest degree or extremity, going beyond bounds or propriety.