Early 16th century; earliest use found in 2nd Baron Berners (c1467–1533), soldier, diplomat, and translator. From violate + -er, after Middle French violateur.
Definition of violater in US English:
violater
nounˈvʌɪəleɪtə
Violator.
Origin
Early 16th century; earliest use found in 2nd Baron Berners (c1467–1533), soldier, diplomat, and translator. From violate + -er, after Middle French violateur.