Claymore

n. [Contracted from Gael. claidheamh-mòr, a broadsword, from Gael. & Ir. claidheamh, sword, and mor, great, large, W. mawr. Cf. Pr. glay, sword, from Lat. gladius. See GLAYMORE.] A large two-handed sword used formerly by the Scottish Highlanders.

n. [See CLAYMORE.] A large, two-handed sword formerly used by the Highlanders; a claymore. Johnson.