Sinew \Sin"ew\, n. [OE. sinewe, senewe, AS. sinu, seonu; akin to D. zenuw, OHG. senawa, G. sehne, Icel. sin, Sw. sena, Dan. sene; cf. Skr. sn[=a]va. [root]290.] [1913 Webster] 1. (Anat.) A tendon or tendonous tissue. See {Tendon}. [1913 Webster] 2. Muscle; nerve. [R.] --Sir J. Davies. [1913 Webster] 3. Fig.: That which supplies strength or power. [1913 Webster] The portion and sinew of her fortune, her marriage dowry. --Shak. [1913 Webster] The bodies of men, munition, and money, may justly be called the sinews of war. --Sir W. Raleigh. [1913 Webster] Note: Money alone is often called the sinews of war. [1913 Webster]