"first layer of dye or paint," 1680s, from prime (v.).
primer (n.1)
late 14c., "prayer-book," also "school book" (senses not distinguished in Middle Ages, as reading was taught from prayer books), from Medieval Latin primarius, from Latin primus "first" (see prime (adj.)). The word also might be all or in part from prime (n.) on the same notion as a "Book of Hours." Meaning "small introductory book on any topic" is from 1807.
primer (n.2)
"explosive cap," 1819, agent noun from prime (v.).
例文
1. The President doesn 't need a primer on national security.
大統領は国家安全保障について本を読む必要はありません。
2.The bare metal was sprayed with several coats of primer .
裸の金属にプライマーを何層かスプレーした。
3.I borrowed from the library a primer of phonetics.
図書館から音声学の入門書を借りました。
4.The late Primer Minister is still quite active in politics.
元首相は政界で依然として活躍している。
5.Imagine the face of Philip or Alexander at hearing of a Primer of Macedonian Literature！