Dictionary of Medieval Names
from European Sources

Luther m. Old High German liut 'people' + Old High German heri 'host, army' or Ancient Greek έλεύθερος 'free'.

The name was sometimes conflated with Lothar.

Austria
Latin
c1030 Liuther (nom) UrkStyria 46; 1074x1087 Liuther (nom) ibid. 77
Denmark
Latin
1362 Lyderus (nom) MIRGPCM4 XVI-V
Danish
1581 Lyder KD-1 no. 362
France
Latin
711 Leotarius (nom) CartYonne1 IX; c823 Lederius (nom) irminon-vol2 46, Ved, Leutharius (nom) ibid. 96, Palatiolum, Leutharus (nom) ibid. 7, Gaugiacum; 980 Leothericus (nom) NotSLdN p. 247
Germany
Latin
822x875 Liudharius (nom) TradCorb §149, Liutharius (nom) ibid. §56, Luithario (abl) ibid. §136; 896 Luitharij (gen) quix-vol1 6; 963x1023 Leutheri (nom) TradCorb §226; 1064 Lutharius (nom) quix-vol1 92; 1149 Luitherus (nom) mairhofer XXXIII; 1238 Luderi (gen) CDL-1.1.1 XVI, Luderum (acc) ibid. XVI, Luderus (nom) ibid. XVII; 1277 Lutherus (nom) hennes-vol1 256; 1289x1298 Luderus (nom) UrkMeck1 no. XCIX; 1303 Luderi (gen) BremUrk2 no. 33, Luderus (nom) ibid. no. 33
The Netherlands
Latin
850 Letheri (nom) OrkGZ no. 41
Cite as: S.L. Uckelman. "Luther". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2023, no. 1. http://dmnes.org/2023/1/name/Luther.