词根词缀：cerauno-, kerauno-

【来源及含义】Greek: thunderbolt, thunder, lightning [literally, "smasher, crusher"]

【相关词根词缀】 Cross references of word groups that are related, directly or indirectly, to: "lightning and/or thunder": astrapo-; bronto-; fulgur-; tonitro-, tonitru-.

【同源单词】ceraunia, ceraunics, ceraunogram, ceraunograph, ceraunomancy, ceraunomania

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