penumbra的词源

英文词源

penumbra

penumbra: see umbrage

penumbra (n.)

1660s, from Modern Latin penumbra "partial shadow outside the complete shadow of an eclipse," coined 1604 by Kepler from Latin pæne "almost" + umbra "shadow" (see umbrage). Related: Penumbral.

中文词源

penumbra：半影

来自拉丁语paene,几乎，接近，umbra,阴影，全影，词源同umbrella.

该词的英语词源请访问趣词词源英文版：penumbra 词源，penumbra 含义。