The Collaborative International Dictionary
Monomachia
Monomachia \Mon`o*ma"chi*a\, Monomachy \Mo*nom"a*chy\, n. [L.
monomachia, Gr. ?, fr. ? fighting in single combat; mo`nos
single, alone + ? to fight.]
A duel; single combat. ``The duello or monomachia.''
--Sir W.
Scott.
Wiktionary
monomachia
n. (context obsolete English) A duel; single combat.