英文词源
- umbra (n.)
- 1590s, "phantom, ghost," a figurative use from Latin umbra "shade, shadow" (see umbrage). Astronomical sense of "shadow cast by the earth or moon during an eclipse" is first recorded 1670s. Meaning "an uninvited guest accompanying an invited one" is from 1690s in English, from a secondary sense among the Romans. Related: Umbral.
中文词源
umbra：（日食或月食期间地球或月球的）本影
来自拉丁语umbra,阴影，影子，词源同umbrage, umbrella,用来指日食或月食期间地球或月球的本影。
该词的英语词源请访问趣词词源英文版：umbra 词源，umbra 含义。
umbra：（日食或月食期间地球或月球的）本影
来自拉丁语 umbra,阴影，影子，词源同 umbrage,umbrella,用来指日食或月食期间地球或月球 的本影。
