Mattress

n. [O. Fr. materas, N. Fr. matelas, It. materasso, materassa, L. Lat. matratium, mataratium, mataritium, Ger. matratze, Sp. & Pg. al-madraque, Pr. almatrac, from Ar. matrah, a place where any thing is thrown, what is thrown under something, from tharha, to throw.] A quilted bed; a bed stuffed with hair, moss, or other soft material, and quilted. [Written also matress.]