Greaves

Easton's Bible Dictionary (1897)

Only in 1 Sam. 17:6, a piece of defensive armour (q.v.) reaching from the foot to the knee; from French greve, “the shin.” They were the Roman cothurni.

Smith's Bible Dictionary (1863)

a piece of defensive armor which reached from the foot to the knee and thus protected the shin of the wearer. It was made of leather or brass.

Public domain dictionaries.