1. excogitate

1. 想出：exclusivism 排外主义 | excogitate 想出 | excogitation 设计

2. 研究出：excogitate 想出 | excogitate 研究出 | excommunicate 被逐出教会的

3. 想出,设计(计划,办法)：cogitate 慎重思考,思索 | excogitate 想出,设计(计划,办法) | regurgitate 反胃,呕吐

4. 想出/研究出/设计/发明：exclusivism /排外主义/ | excogitate /想出/研究出/设计/发明/ | excogitation /设计/发明/

1. reflect deeply on a subject

    e.g. I mulled over the events of the afternoon
           philosophers have speculated on the question of God for thousands of years
           The scientist must stop to observe and start to excogitate

    Synonym: chew overthink overmeditatepondercontemplatemusereflectmullmull overruminatespeculate

2. come up with (an idea, plan, explanation, theory, or principle) after a mental effort

    e.g. excogitate a way to measure the speed of light

    Synonym: inventcontrivedeviseformulateforge