Webster's Revised Unabridged Dictionary · 1913

Kythe

Kythe (kīt) , transitive verb

[Old English kythen, kithen, cueen, to make known, Anglo-Saxon cȳean, from cūe known. r45. See Uncouth, Can to be able, and compare Kith.]

To make known; to manifest; to show; to declare. [Obsolete or Scottish]
For gentle hearte kytheth gentilesse. — Chaucer

Also: Kithe

Kythe , transitive verb

To come into view; to appear. [Scottish]
It kythes bright... because all is dark around it. — Sir W. Scott