Quenya 

mísë

grey

mísë (þ, cf. Sindarin mith-) adj. "grey" (used as noun of grey clothes in the phrase mi mísë of someone clad "in grey"). The underlying stem refers a paler or whiter "grey" than sinda, making mísë "a luminous grey" (PE17:71-72)

mísë

adjective. (light) grey

sanomë tarnë olórin, aracorno, eomer, imrahil, mi mísë, mi telepta yo morna, mi laiqua yo ninquë, mi luinë, ta gimli mi lossëa

There stood Gandalf, Aragorn, Eomer and Imrahil in grey, in silver and black, in green and white, and in blue, and also Gimli in white