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English word arc comes from Proto-Indo-European *h₂erkʷo-, and later Latin arcus (Arc. Bow (arc-shaped weapon used for archery). Rainbow.)
*h₂erkʷo- (Proto-Indo-European)
bow, arrow
arcus (Latin)
Arc. Bow (arc-shaped weapon used for archery). Rainbow.
arc (Old French)
(architecture) arch. Bow (weapon made of a curved piece of wood or other flexible material whose ends are connected by a string).
arc (English)
(astronomy) That part of a circle which a heavenly body appears to pass through as it moves above and below the horizon. [from 14th c.]. (basketball, slang) The three-point line.. (electrics) A flow of current across an insulating medium; especially a hot, luminous discharge between either two electrodes or as lightning. [from 19th c.]. (geometry) A continuous part of the circumference of a [...]