Old English earh, ārwe, from Proto-Germanic *arhwō, from Proto-Indo-European *arku- (“‘bow and/or arrow’”). Near cognates include Gothic 𐌰𐍂𐍈𐌰𐌶𐌽𐌰 (arƕazna) and Old Norse ǫr; further cognates include Latin arcus, bow
- A projectile consisting of a shaft, a point and a tail with stabilizing fins that is shot from a bow.
- A sign or symbol used to indicate a direction (eg. <math>\to</math>).
- (graph theory) A directed edge.
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