rarefy

英 ['reərɪfaɪ]美 ['rɛrə,fai]

vt. 使纯化；变稀薄；精选

vi. 变稀薄；纯化

中文词源

rarefy 变稀薄，使高雅

来自 rare,稀薄的，罕见的，-fy,使。引申词义使精深，使高雅。

英文词源

rarefy (v.)

late 14c., from Old French rarefier (14c.) and directly from Medieval Latin rarificare, from Latin rarefacere "make rare," from rarus "rare, thin" (see rare (adj.1)) + facere "to make" (see factitious). Related: Rarefied.

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