词根词缀：gero-, geri-, ger-, geronto-, geront-

【来源及含义】Greek: old age, old man, old people; elder, elderly; senior citizen

【相关描述】Don't confuse this gero-, ger- with another Latin ger- which means "to carry, to produce; to bear".

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

【同源单词】agerasia, eugeria, geranosis, geransis, gerascophobia, gerathymia

词根词缀：obsolesc-, obsolescent-, obsolet-

【来源及含义】Latin: to wear out, to grow old; to fall into disuse; to grow out of use; elderly, older

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

【同源单词】obsolesce, obsolesced, obsolescence, obsolescent, obsolescently, obsolescing

词根词缀：presby-, presbyo-

【来源及含义】Greek: old, relationship to old age, elderly, elder; literally, "he that goes first"

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

【同源单词】elder, elder share, presbyasomnia, presbyatrics, presbycardia, presbycusis

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

词根词缀：veter-

【来源及含义】Latin vetus: old, aged, old age; many years, a long time; elder, elderly; senior

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

【同源单词】inveteracy, inveterate, inveterately, inveterateness, inveteration, veteran