Dictionary of Medieval Names
from European Sources

Gerwin m. Old High German, Old Saxon gēr 'spear' + Old High German wini 'friend'.

Estonia
Middle Low German
1385 Gherwyn BbRT p. 338; 1402 Gherwyn ibid. p. 343; 1412 Gherwyn ibid. p. 346; 1419 Gherwyn ibid. p. 348; 1429 Gerwin ibid. p. 354; 1430 Gerwin ibid. p. 354; 1440 Gerwen ibid. p. 362; 1442 Gereuen ibid. p. 364
France
Latin
c823 Gairoinus (nom) irminon-vol2 35, Palatiolum, Giroinus (nom) ibid. 33, CE
Germany
Latin
1259 Gerewinus (nom) CDL-1.1.1 XXXI; 1401 gerwino (dat) HD1401 no. 353
Cite as: S.L. Uckelman. "Gerwin". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Gerwin.