Webster's Revised Unabridged Dictionary · 1913

Furl

Furl (fûrl) , transitive verb

[Contr. from furdle, from fardel bundle: compare French ferler to furl, Old French fardeler to pack. See Furdle, Fardel, and compare Farl.]

To draw up or gather into close compass; to wrap or roll, as a sail, close to the yard, stay, or mast, or, as a flag, close to or around its staff, securing it there by a gasket or line. — Totten