Emily Dickinson Lexicon

MAT, n. [W. mat; Sax. meatta; D. mat; G. matte; L. matta; Sp. mata; Ir. matta; Russ. mat; W. math, that is spread. The sense is probably a lay or spread, from falling, throwing, or stretching. Class Md, No. 6, 8, 9.]

1. A texture of sedge, rushes, flags, husks, straw, or other material, to be laid on a floor for cleaning the boots and shoes of those who enter a house, and for other purposes. Carew.
2. A web of rope-yarn, used in ships to secure the standing rigging from the friction of the yards, &c.