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Dictionary of Medieval Names
from European Sources

Warnger m. A derivative of Old Saxon waru, Old High German wara 'protection, watch' + Old High German, Old Saxon gēr 'spear'.

England
Latin
1189 Waringier (nom) GASurv p. 229
France
Latin
1147 Warengerii (gen) clairvaux-12thc 18
Cite as: S.L. Uckelman. "Warnger". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 3. http://dmnes.org/2015/3/name/Warnger.