Early 17th century. From post-classical Latin iudicator person who judges from classical Latin iūdicāt-, past participial stem of iūdicāre to judge + -or.
Definition of judicator in US English:
judicator
nounˈdʒuːdɪkeɪtə
Adjudicator.
Origin
Early 17th century. From post-classical Latin iudicator person who judges from classical Latin iūdicāt-, past participial stem of iūdicāre to judge + -or.