From The Collaborative International Dictionary of English v.0.48: Niste \Nis"te\ [Contr. from ne wiste.] Wist not; knew not. [Obs.] --Chaucer. [1913 Webster]
Niste \Nis"te\ [Contr. from ne wiste.] Wist not; knew not. [Obs.] --Chaucer. [1913 Webster]