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
Germany
Early New High German
1408 Lena (nom) UrkJen2 15
Italy
Latin
1367 Lena (nom) Livi 144
Cite as: S.L. Uckelman. "Lena". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2019, no. 1. http://dmnes.org/2019/1/name/Lena.