词根词缀：aevum, evum; etern-; aeternus

【来源及含义】Latin: age; space of time, ever, always; eternity

【相关词根词缀】 Related "time" units: archaeo-, archeo-; Calendars; chrono-; horo-; pre-; Quotes: Time; tempo-.

【同源单词】Ab aeterno, aeon, age, aged, aye, coetaneous

词根词缀：long-, longi-

【来源及含义】Latin: long

【同源单词】elongate, elongation, long, long, longanimity, longeval