So Giok, referring to your first posting, jeans were made first from jean, not denim.

But I won't hold it against you..... unless you ask really nicely!

(Fustian is a bolt of cloth woven with 2 layers of weft, with the warp being woven between the two. Cutters would then walk the length of the bolt with a blade, slicing the warp threads and creating two separate pieces of cloth with a pile.)

LTS