Dictionary of Medieval Names
from European Sources

Ernest m. Old High German ernust 'serious, severe, grave, ernest'.

Austria
Latin
927 Ernust (nom) UrkStyria 17; c1050 Ernusti (gen) ibid. 57; c1066 Hernust (nom) ibid. 68; c1070 Ernost (nom) ibid. 71; 1074x1087 Ernst (nom) ibid. 77; c1075 Ernust (nom) ibid. 78, Ernustis (gen) ibid. 78; c1120 Ernest (nom) ibid. 108, Ernist (nom) ibid. 106
Early New High German
1439 Ernst (nom) ChronSH p. 32, Ernstn (dat) ibid. p. 35
Czech Republic
Latin
1345 Arnestus (nom) CDEM-7.2 606; 1415 Arnestus (nom) LDFPUP1 p. 23
Estonia
Middle Low German
1440 Ernst BbRT p. 362
Germany
Latin
855 Ernst (nom) FRA-XXXL 14, Ernsto (dat) ibid. 14; 904 Ernustus (nom) UrkStyria 13; 1142 Ernist (nom) mairhofer VIII; 1218 Ernestus (nom) hennes-vol1 35; 1221 Ernestus (nom) ibid. 57; 1271 Ernesto (abl) ibid. 220; 1401 Ernesto (dat) HD1401 no. 253
Early New High German
1419 Ernst (nom) mairhofer DCCIX; 1426 Ernst (nom) ibid. DCCXXIV
Italy
Latin
1096 Ernest (nom) UrkStyria 88
Latvia
Latin
1306 Ernesto (dat) RigSB 939
Poland
Latin
1345 Arnesto (abl) CDEM-7.2 628
Cite as: S.L. Uckelman. "Ernest". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2020, no. 1. http://dmnes.org/2020/1/name/Ernest.