excogitate

动词 excogitate:

1. come up with (an idea, plan, explanation, theory, or principle) after a mental effort
   同义词：invent, contrive, devise, formulate, forge
2. reflect deeply on a subject
   同义词：chew over, think over, meditate, ponder, contemplate, muse, reflect, mull, mull over, ruminate, speculate

ex.cog.i.tate

v.tr.（及物动词）
ex.cog.i.tat.ed,ex.cog.i.tat.ing,ex.cog.i.tates
To consider or think (something) out carefully and thoroughly.
深思熟虑：仔细和彻底地考虑或想出

来源：
Latin excôgit3re excôgit3t- [to find out by thinking]
拉丁语 excôgit3re excôgit3t- [用思考的方法找出]
ex- [ex-]
ex- [前缀，表.出自….]
côgit3re [to think] * see cogitate
côgit3re [想] *参见 cogitate

【引伸】
excog.ita.tion
n.（名词）
excog.ita.tive
adj.（形容词）