Entry 2 senses · 2 variants Webster, 1913 Stith /(stĭth)/ · IPA /stɪθ/ a. n. 01 a. Strong; stiff; rigid. 1. Strong; stiff; rigid.[Obs. or Prov. Eng.] 02 n. An anvil; a stithy. 1. An anvil; a stithy.[Obs. or Prov. Eng.] “He invented also pincers, hammers, iron crows, and the anvil, or stith.” — Holland.