太刀

Etymology
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From. Appears in the  of 720.

Derived from, the of verb.

The kanji spelling is a shift from the original, indicating straight swords before the , and later indicating curved swords.

Noun

 * 1) a type of longsword
 * 2) a sword positioned with the blade facing down when worn
 * 1) a sword positioned with the blade facing down when worn
 * 1) a sword positioned with the blade facing down when worn