Meaning: range of what one can know or understand; "beyond my ken"
The Professor, the guide, the raft--are all gone out of my ken.
If you're serious, Ken, I'll frankly say the thing can't be done.
I ken a body made a strike. He looked a little lord. He had a clan o' followers Amang a needy horde.
Was it--or rather wasn't it--that if for so long she had been watching with him the answer to their question must have swum into her ken and taken on its name, so that her occupation was verily gone?
And the King said, "Do thou take my sword Who have done this deed of fire, For this is the manner of Christian men, Whether of steel or priestly pen, That they cast their hearts out of their ken To get their heart's desire.