GNU Collaborative International Dictionary of English

Found 2 definitions

1.       
   Misle , v. i. [imp. & p. p. Misled ; p. pr. & vb. n. Misling .] [Prop. mistle, fr. mist. Cf. Mistle, Mizzle.] To rain in very fine drops, like a thick mist; to mizzle; to drizzle. [archaic] 
   1913 Webster
         
       

2.       
   Misle, n. A fine rain; a thick mist; a mizzle; a drizzle.
   1913 Webster