VERB
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change texture so as to become matted and felt-like
The fabric felted up after several washes
How To Use mat up In A Sentence
- In Japan, the puerpera is not placed in the usual recumbent position, but sits propped up by pillows, the mat upon which she was confined being left in place. Labor Among Primitive Peoples
- Captain Hess boxed the compass and Mat Upper wound it.
