Dictionary of Medieval Names
from European Sources

Blithe f. Old English blīþe 'happy, joyful, glad'.

England
Early Modern English
1583 Blith StAnthonlin p. 30
Cite as: S.L. Uckelman. "Blithe". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Blithe.