词根：-cord-, -card-, -cour-

【词根含义】：心(脏)

【词根来源】：-cord-来源于拉丁语名词cor, cordis, n(心脏);-card-来源于希腊语kardia;二者均可追溯至原始印欧语kerd-。-cour-是cor(心脏)的变体。

【同源单词】：accord, accordance, accordant, according, accordingly

词根：-electr-

【词根含义】：电

【词根来源】：来源于拉丁语名词electrum, electri, n(琥珀,电),早期“电”的现象是通过摩擦琥珀而产生的(可以吸引微小而重量轻的物体),直到后来随着科学的进步和发展,电的其它现象实际上也被包括进来了。

【同源单词】：electric, electrical, electrician, electricity, electrify

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：cardio-, cardi-, card-

【来源及含义】Greek: heart, pertaining to the heart

【相关词根词缀】 A cross reference of another word group that is related to: "heart": cor-, cord-.

【同源单词】acardia, acardiac, acardiotrophia, acardius, acleistocardia, acute myocardial infarction

词根词缀：electro-, electr-, electri-

【来源及含义】Greek > Latin: electric, electricity; from amber, resembling amber, generated from amber which when rubbed vigorously [as by friction], produced the effect of static electricity

【相关描述】Equipment which we use everyday relies on electronics to function including calculators, car controls, cameras, washing machines, medical scanners, mobile telephones, radar systems, computers; as well as many other applications or devices which are listed in this unit.

【相关词根词缀】 A cross reference of word units that are related, directly and/or indirectly, with "electricity": galvano-; hodo-; ion-; piezo-; -tron; volt; biomechatronics, info; mechatronics, info.

【同源单词】acoustoelectric effect, acoustoelectronics, active electrode, ambulatory electrocardiographic monitoring, amphoteric electrolyte, anelectrotonus

词根词缀：gram-, -gram-, -gram, -grammatic, -grammatical, -grammatically, -gramme, -grammic

【来源及含义】Greek: write, writing, something written, a written record, a recording; letters; words; later, a small weight, a unit of mass in the metric system

【相关描述】A unit of weight in the metric system from 1797 gramme, borrowing of French gramme, from Late Latin gramma, "small weight"; from Greek gramma, "small weight"; originally, "something written"; from the stem of graphein, "to draw, to write".

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

【同源单词】accelerogram, achillogram, acoustogram, acrogram, acronym, actinogram