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：archaeo-, archeo-, archae-, arche-, archa-, archi-, -arch

【来源及含义】Greek: original [first in time], beginning, first cause, origin, ancient, primitive, from the beginning; most basic

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

【同源单词】antarchism, archaebacterium, archaeoastronomer, archaeoastronomy, archaeobacterium, archaeofauna

词根词缀：chrono-, chron-

【来源及含义】Greek: time, times; sequence of times

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

【同源单词】achronism, algesichronometer, allochronic, allochronic speciation, anachronic, anachronism

词根词缀：horo-, hour-

【来源及含义】Greek > Latin: hour, time; period of time, season, any limited time

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

【同源单词】bihourly, encore, horography, horologe, horologic, horologiography

词根词缀：pre-, prae-

【来源及含义】Latin: before [both in time and place]

【相关描述】The prefix prae- can actually be substituted for pre- because both of them are different spellings for the same prefix meaning "before".

【相关词根词缀】 Related before-word units: ante-; antero-; anti-; pro-. Related "time" units: aevum, evum; archaeo-, archeo-; Calendars; chrono-; horo-; Quotes: Time; tempo-.

【同源单词】preacquaint, preacquaintance, preagonal, pre-agricultural, preamble, preambular

词根词缀：tempo-, tempor-

【来源及含义】Latin: time, occasion

【相关描述】Don't confuse this tempo- element with other words that refer to the temples; such as, the flattened sides of the forehead or the buildings used for religious worship or services. They simply have no connection with this element.

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

【同源单词】contemporaneous, contemporary, contemporate, contemporize, contretemps, distemper