Opponent. In later use: (Canadian Law) a person contesting a matter before a judge or court.
Origin
Late 15th century; earliest use found in William Caxton (1415x24–1492), printer, merchant, and diplomat. From French opposant, use as noun of present participle of opposeroppose; compare -ant.
Definition of opposant in US English:
opposant
nounəˈpəʊz(ə)nt
rare
Opponent. In later use: (Canadian Law) a person contesting a matter before a judge or court.
Origin
Late 15th century; earliest use found in William Caxton (1415x24–1492), printer, merchant, and diplomat. From French opposant, use as noun of present participle of opposer oppose; compare -ant.