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Dictionary of Medieval Names
from European Sources

Lena f. A hypocoristic of any name ending in -line or -lina, such as Adeline, Emmeline, or Leceline (cf. Lettice).

England
Latin
1381 Lenota (nom) Suffolk1381 p. 82
Cite as: S.L. Uckelman. "Lena". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Lena.