Yerne

from The Collaborative International Dictionary of English v.0.48

Yerne \Yerne\, adv. [OE. [yogh]eorne. See {Yern}, a.]
   Eagerly; briskly; quickly. [Obs.] --Piers Plowman.
   [1913 Webster]

         My hands and my tongue go so yerne.      --Chaucer.
   [1913 Webster]