Actually I spelled it right. Lulz. I'd recommend buying a dictionary.
Noun
guarder (plural guarders)
A person who guards; a guard.
1603, John Florio, translating Michel de Montaigne, Essays, II.27:
they found themselves in view of the town, whence the night before they had hoised sailes, where they were pursued by the guarders and Souldiers of the Port.