Strong's #5384: nasheh (pronounced naw-sheh')
from 5382, in the sense of failure; rheumatic or crippled (from the incident to Jacob):--which shrank.
Brown-Driver-Briggs Hebrew Lexicon:
ׁ
nâsheh
1) vein, nerve, tendon (in the thigh)
Part of Speech: noun masculine
Relation: from H5382, in the sense of failure
Usage:
This word is used 2 times:
Genesis 32:32: "eat not of the sinew which shrank, which is upon the hollow"
Genesis 32:32: "the hollow of Jacob's thigh in the sinew that shrank."