The Collaborative International Dictionary of English v.0.48:

Quoth \Quoth\ (kw[=o]th or kw[u^]th), v. t. [AS. cwe[eth]an, imp
   cw[ae][eth], pl. cw[=ae]don; akin to OS. que[eth]an, OHG.
   quethan, quedan, Icel. kve[eth]a, Goth. qi[thorn]an.
   [root]22. Cf. Bequeath.]
   Said; spoke; uttered; -- used only in the first and third
   persons in the past tenses, and always followed by its
   nominative, the word or words said being the object; as,
   quoth I, quoth he. "Let me not live, quoth he." --Shak.
   [1913 Webster]