Tibia

google

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late Middle English: from Latin, ‘shin bone’.

wiktionary

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Borrowed from Latin tībia(“shin bone, leg”).

etymonline

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tibia (n.)

lower leg bone, 1726, from Latin tibia "shinbone," also "pipe, flute" (originally one of bone), in which sense it originally came into English (1540s). Of unknown origin. The Latin plural is tibiæ. Related: Tibial.