Dictionary of Medieval Names
from European Sources

Arnger m. Old High German, Old Saxon arn, Old Icelandic ǫrn 'eagle' + Old High German, Old Saxon gēr, Old Icelandic 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 2016, no. 4. http://dmnes.org/2016/4/name/Arnger.