or Glaymore (2 syl.) is the Celtic glaif (a bent sword), Gaelic claidheamh (a sword), and mór (great). (See Morglay)
I've told thee how the Southrons fell Beneath the broad claymore.
Aytoun: Execution of Montrose, stanza 2
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894