The Collaborative International Dictionary of English v.0.48:
Ken \Ken\, v. t. [imp. & p. p. Kenned (k[e^]nd); p. pr. & vb.
n. Kenning.] [OE. kennen to teach, make known, know, AS.
cennan to make known, proclaim, or rather from the related
Icel. kenna to know; akin to D. & G. kennen to know, Goth.
kannjan to make known; orig., a causative corresponding to
AS. cunnan to know, Goth. kunnan. [root]45. See Can to be
1. To know; to understand; to take cognizance of. [Archaic or
2. To recognize; to descry; to discern. [Archaic or Scot.]
"We ken them from afar." --Addison
'T is he. I ken the manner of his gait. --Shak.