matting

(noun) a covering of coarse fabric (usually of straw or hemp).

(noun) mounting consisting of a border or background for a picture. Synonyms: mat.

(verb) twist together or entwine into a confusing mass. Synonyms: entangle, tangle, mat, snarl. Examples: "The child entangled the cord."

(verb) change texture so as to become matted and felt-like. Synonyms: felt, felt up, mat up, matt-up, matte up, matte, mat. Examples: "The fabric felted up after several washes."