English adversary

← Middle English adversarie (inherited)

← French adversaire (cognate)

← Old French aversier (derived)

← Old French aversaire (mention)

← Latin adversārius (derived)

← Latin adversus (mention)

→ English foe (link)

→ English adversarial (affix)

→ English adversariness (suffix)

→ Norwegian Bokmål motstander (link)