Dictionary of Medieval Names
from European Sources

Harwich m. Old High German heri 'host, army' + Old Saxon, Old English wig, Old High German wīc 'war, battle'.

Austria
Latin
c1120 Heriwic (nom) UrkStyria 108
France
Latin
c823 Eriveus (nom) irminon-vol2 111, Palatiolum
Germany
Latin
1210 Harwico (abl) CDL-1.1.1 IV
Cite as: S.L. Uckelman. "Harwich". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Harwich.