词根：-chron-

【词根含义】：时间

【词根来源】：来源于希腊语khronos(时间)和kronikos(时间的)。

【同源单词】：chronic, chronicle, chronograph, chronological, chronology

词根：-gram-, -graph-

【词根含义】：写,画

【词根来源】：-gram-来源于希腊语名词gramma(写下的东西),其在希腊语中派生了形容词grammatikos(字母的),名词化为grammatike,进入拉丁语为grammatica,古法语为gramaire,盎格鲁-诺曼底语为gramere。-graph-来源于希腊语graphein(写,画)。

【同源单词】：cryptogram, diagram, electrocardiogram, epigram, gram

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：grapho-, graph-, -graph, -graphy, -grapher, -graphia

【来源及含义】Greek: to scratch; to write, to record, to draw, to describe; that which is written or described

【相关描述】As indicated at the bottom of this page, there are a significantly large number of graphic word-entry groups in this unit. Such an extensive listing is provided to show how important the grapho- element is to the English language.

【相关词根词缀】Related "writing" word units: glypto-; gram-; scrib-, script-.

【同源单词】abdominal aortography, accelerograph, acoustic agraphia, acrography, actinograph, actinography