cognition
n.
mid-15c., "ability to comprehend," from Latin cognitionem (nominative cognitio) "a getting to know, acquaintance, knowledge," noun of action from past participle stem of cognoscere (see cognizance).
〔蒋〕[cogn知道→认识，认知，-ition名词后缀] 认识
〔李〕[co-=completely完全；gnit=to know知；-ion n.=the act表行为→“the act of knowing completely 全知的行为”→] n. knowing;perception认识（能力）