commemorative
adj.
1610s, from commemorate + -ive. As a noun meaning "means of commemoration" it is recorded from 1630s; as short for commemorative postage stamp from 1916.
〔蒋〕[memor=memory记忆,-ative表示有…性质的] 纪念性的
| 词汇 | commemorative | 
| 词根词缀 | Online Etymology Dictionary 词根李平武蒋争 commemorative adj. 1610s, from commemorate + -ive. As a noun meaning "means of commemoration" it is recorded from 1630s; as short for commemorative postage stamp from 1916. 〔蒋〕[memor=memory记忆,-ative表示有…性质的] 纪念性的 | 
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