Definition of sophisticate noun from the Oxford Advanced Learner's Dictionary

 

sophisticate

 noun
noun
BrE BrE//səˈfɪstɪkeɪt//
 
; NAmE NAmE//səˈfɪstɪkeɪt//
 
(formal)
 
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a sophisticated person She wasn’t the sophisticate that Jack had imagined her to be. Word Origin late Middle English (as an adjective in the sense ‘impure’, and as a verb in the sense ‘mix with a foreign substance’): from medieval Latin sophisticatus ‘tampered with’, past participle of the verb sophisticare, from sophisticus ‘sophistic’. The shift of sense probably occurred first in the adjective unsophisticated, from ‘uncorrupted’ via ‘innocent’ to ‘inexperienced, uncultured’. The noun dates from the early 20th cent.
See the Oxford Advanced American Dictionary entry: sophisticate