ثيل

Etymology
Considered a variant of, "to hang", "to be pendent", "to be excess length", "a garment that trails along the ground"; the plant sense stemming from the meaning "to drag along the ground" as the plant extends rapidly that way.

Noun

 * 1) sheath of a camel’s penis

Noun

 * 1) Bermuda grass
 * 2) quackgrass