ken 
(k
ĕn)
n.1. Perception; understanding: complex issues well beyond our ken.
2. a. Range of vision.
b. View; sight.
v. kenned or kent (kĕnt), ken·ning, kens
Scots
v.tr.1. To know (a person or thing).
2. To recognize.
v.intr. To have knowledge or an understanding.
[From Middle English kennen (influenced by Old Norse kenna, to know), from Old English cennan, to declare; see gnō- in the Appendix of Indo-European roots.]