Word Origin & History
claymore1772, "two-edged broadsword of ancient Scottish Highlanders," from Gael. claidheamh mor "great sword," from claidheb "sword," from PIE base *kel- "to strike" + mor "great." An antiquarian word made familiar again by Scott's novels; modern military application to pellet-scattering anti-personnel mine
EXPAND is first attested 1962.
COLLAPSE