Dictionary of Medieval Names
from European Sources

Ingalsinde f. An elongation of Old Icelandic ing(i), of uncertain origin but perhaps identical with the god name Ing or Yngvi, also of uncertain origin + Old Saxon swīth, Gothic swinþs from Proto-Germanic *swinþaz 'strong'.

France
Latin
c823 Ingalsindis (nom) irminon-vol2 38, Palatiolum
Cite as: S.L. Uckelman. "Ingalsinde". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Ingalsinde.