to gather into a compact roll and bind securely, as a sail against a spar or a flag against its staff.

to become furled.

the act of furling.

something furled, as a roll. ?

furl in a body, Nautical . to furl (a square sail) with loose canvas gathered at the mast

so as to make a harbor furl.

furl in the bunt, Nautical . to furl (a square sail) by gathering canvas upward

so as to load the yard equally at all points.

verb

curl , roll , fold , roll up , bundle , coil , enfold , truss , wrap