ruttier /ˈrʌtɪə/ noun2 •(no longer used) A chart of a course, especially at sea.These charts probably originated as graphic extensions of simple but accurate descriptions of ports, coasts, and customary routes contained in pilot books (ruttiers). — 1988 •(no longer used) A mounted warrior, or knightHe and his troop of Angevine ruttiers had fought like tigers by William’s side, at Hastings[.] — 1866 formsruttiers