ether (n.) late 14c., "upper regions of space," from Old French - TopicsExpress



          

ether (n.) late 14c., "upper regions of space," from Old French ether and directly from Latin aether "the upper pure, bright air," from Greek aither "upper air; bright, purer air; the sky," from aithein "to burn, shine," from PIE root *aidh- "to burn" (see edifice). In ancient cosmology, the element that filled all space beyond the sphere of the moon, constituting the substance of the stars and planets. Conceived of as a purer form of fire or air, or as a fifth element.
Posted on: Thu, 06 Jun 2013 02:33:09 +0000

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