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Dictionary of Medieval Names
from European Sources

Arnger m. Old High German, Old Saxon arn, Old Norse ǫrn 'eagle' + Old High German, Old Saxon gēr, Old Norse geirr 'spear'.

Italy
Latin
1285 Aringerii (gen) Perugia1285 p. 156
Cite as: S.L. Uckelman. "Arnger". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 2. http://dmnes.org/2015/2/name/Arnger.