動詞 furl:

1. form into a cylinder by rolling
   同義詞：roll up

1. A cord or canvas strap used to secure a furled sail to a yard boom or gaff.
   束帆索一種繩子或帆布帶，用來把一個卷疊的帆置于一橫木或斜桁上
2. This fan doesn't furl neatly.
   這把扇子摺不上了。

furl

v.（動詞）
furled,furl.ing,furls
v.tr.（及物動詞）
To roll up and secure (a flag or sail, for example) to something else.
卷起：收卷或把（例如旗或帆）卷到其它物上
v.intr.（不及物動詞）
To be or become rolled up.
卷起，折攏
n.（名詞）
The act or an instance of rolling up.
收攏的行為或事例
A single roll or a rolled section.
一卷東西或被卷起來的一段

來源：
Perhaps from French ferler
可能源自 法語 ferler
from Old French ferlier [to fasten]
源自 古法語 ferlier [扎牢]
ferm [firm] * see firm
ferm [牢固的] *參見 firm
lier [to bind] from Latin lig3re * see leig-
lier [捆綁] 源自 拉丁語 lig3re *參見 leig-