kithe
To make known; to reveal.
archaic
these lines are sent by me, to keep the law and kithe my love to thee.
Where it comes from
From Middle English kiþen, küthen, kithen, from Old English cȳþan, from Proto-West Germanic *kunþijan, from Proto-Germanic *kunþijaną (“to make known”).
Adapted from the Wiktionary entry kithe (CC BY-SA 4.0).