EXCOGITATE Meaning of EXCOGITATE in English [ ɪks'kɒdʒɪteɪt , ɛks- ]■ verb formal think out, plan, or devise.Derivativesexcogitation noun OriginC16: from L. excogitat- , excogitare , from ex- 'out' + cogitare 'think'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004