twill definition by Webster's New World
- a cloth woven so as to have parallel diagonal lines or ribs
- the pattern of this weave or its appearance
Origin: Middle English twyll ; from Old English twilic, woven of double thread (akin to Old High German zwilih) ; from West Germanic partial translated, translation (with twi-, two) of Classical Latin bilix, with a double thread ; from bi-, bi- plush licium, a thread
twill definition by American Heritage Dictionary
- A fabric with diagonal parallel ribs.
- The weave used to produce such a fabric.
Origin: Middle English twile, from Old English twilīc, woven of double thread; see dwo- in Indo-European roots.