Her recollection of the event was surprisingly accurate.

recollection 是由前缀 re-（表示"重新"）和 collection（收集）组成的复合词。re- 表示"再次"，collection 来自动词 collect（收集），所以 recollection 字面意思是"重新收集"，引申为"回忆、记忆"。