BDB5415
נָשֶׁה noun [masculine] a vein (or nerve) in the thigh (etymology dubious; on formative compare LagBN 50; Arabic [untranscribed source text 3465] apparently the portion of the principal vein of the leg which is in the thigh , vulgar sciatic vein, or (modern) sciatic nerve and even sciatica, Lane3033); — only גִּיד הַנָּשֶׁה Gen Gen 32:33a the sinew of the thigh-vein (or thigh-nerve, אֲשֶׁר עַלכַּֿף הַיָּרֵךְ), compare v33b. — On sacredness of thigh, compare RSSem i. 360; 2nd ed. 380 WeHeid (2), 168.
נָשִׁים see אִשָּׁה above