Webster’s Revised Unabridged Dictionary · 1913
Kythe
Kythe, Kithe (kīt͟h), v. t. [imp. Kydde, Kidde (kĭd′de); p. p. Kythed, Kid; p. pr. & vb. n. Kything.] [OE. kythen, kithen, cuðen, to make known, AS. cȳðan, fr. cūð known. √45. See Uncouth, Can to be able, and cf. Kith.] To make known; to manifest; to show; to declare. [Obs. or Scot.]
For gentle hearte kytheth gentilesse. Chaucer.
Kythe, v. t. To come into view; to appear. [Scot.]
It kythes bright . . . because all is dark around it. Sir W. Scott.