Dictionary of Medieval Names
from European Sources

Ortwin m. Old High German ort 'point (of a spear or sword)' + Old English wine, Old High German wini 'friend'.

Austria
Latin
c1120 Ortwinus (nom) UrkStyria 104
England
Latin
1189 Ordwinus (nom) GASurv p. 169
Germany
Latin
1281 Ortwino (abl) hennes-vol1 279
Cite as: S.L. Uckelman. "Ortwin". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2019, no. 1. http://dmnes.org/2019/1/name/Ortwin.