An instrument used in weaving for passing the thread of the weft to and fro from one edge of the cloth to the other between the threads of the warp.
Snarl To tangle; to twist together confusedly; to make a tangle of.
Roved to make (carded or combed wool, cotton, etc.) into rovings (A long thin strand of wool or cotton, drawn out and slightly twisted in preparation for spinning; a roll of this. [OED]

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