词根词缀：-ile, -il

【来源及含义】Latin: suffix; ability to, capable of, suitable for; pertaining to, like, belonging to, tending to

【同源单词】agile, docile, domicile, facile, fertile, fragile

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