E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Garrote or Garotte (2 syl., g hard)
is the Spanish garrote (a stick). The original way of garrotting in Spain was to place the victim on a chair with a cord round his neck, then to twist the cord with a stick till strangulation ensued. In 1851 General Lopez was garrotted by the Spanish authorities for attempting to gain possession of Cuba; since which time the thieves of London, etc., have adopted the method of strangling their victim by throwing their arms round his throat, while an accomplice rifles his pockets.