词根：-sen-

【词根含义】：老

【词根来源】：来源于拉丁语形容词senex, senis(老的),其比较级为senior。

【同源单词】：senate, senator, senior, seniority, sir

词根词缀：-ate (to do)

【来源及含义】Latin: a suffix; to do, to make, to cause, or to act upon; to do something with

【同源单词】abbreviate, abdicate, abdicate, abnegate, accelerative, accentuate

词根词缀：sen-, sene-, seni-, sir-

【来源及含义】Latin: old age, old, elder, elderly

【相关词根词缀】 Related "old; old age, elder" units: gero-; obsolesc-; presbyo-; veter-.

【同源单词】insenescence, insenescent, premature senility, psychosis of senility, seignior, seigniorage