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：tephro-

【来源及含义】Greek: ash-gray; volcanic material such as ash, dust, cinders, etc.

【同源单词】tephra, tephrite, tephritic, tephrochronological, tephrochronology, tephroite