The vernacular English form Moris is witnessed in 1379 in the relational byname Morissoñ (WRYPT1 p. 292).
In Ireland, Maurice was used as an anglicization of Muircheartach.
  
  
- Austria
- 
- Early New High German
- ● 1427 Mauritz (nom) ChronSH p. 9
 
- Czech Republic
- 
- Latin
- ● 1348 Mauritij (gen) chlumecky 11;
 1349 Mauritij (gen) ibid. 17;
 1356 Mauricij (gen) ibid. 131;
 1358 Mauricij (gen) ibid. p. 287, p. 33,
 Mauricius (nom) ibid. 288, p. 33
 
- Denmark
- 
- Danish
- ● 1581 Mauritz KD-1 no. 362,
 Mouritz ibid. no. 362
 
- England
- 
- Latin
- ● 1222 Mauricius (nom) StPaulDom p. 7;
 1240 Mauricii (gen) ibid. p. 120,
 Mauricum (acc) ibid. p. 121;
 1299 Mauricius (nom) ComWil-vol1 p. 3;
 1485–1486 Mauricio (abl) CovGuild-2 p. 62,
 Mores (nom) ibid. p. 79;
 1559 Morris (nom) StMartF p. 60;
 1562 Mazicij (gen) RegSoABap p. 5
- Anglo-French
- ● 1245–1250[1586] Moris Glover 163
- Early Modern English
- ● 1481 Morys HHB1481-90 p. 5;
 1530 Morys LIWill-III p. 34;
 1532–1533 Morres CovGuild-2 p. 109;
 1534 Mores ibid. p. 132;
 1539 Moryshe BarnstapleBap p. 1;
 1540 Morrys ibid. p. 1;
 1542 Morrs ibid. p. 2;
 1558 Morris RegSoAMar p. 1;
 1560 Moris RegSASel p. 6;
 1560/1 Moris ibid. p. 7;
 1562 Moryshe BarnstapleBap p. 12;
 1564 Morice BEmar-vol1 p. 7;
 1565 Mawryce BEmar-vol2 p. 30;
 1569 Maurice bruton1 p. 38;
 1572 Maurice ibid. p. 40;
 1572/3 Morryce SurMus p. 162;
 1575/6 Morris BEmar-vol1 p. 9;
 1580 Moris BEmar-vol2 p. 96;
 1581 Maurice bruton1 p. 44;
 1582 Morris DEmar-vol2 p. 7;
 1583/4 Mavrice SurMus p. 18;
 1587 Maurice bruton1 p. 47;
 1588 Maurice ibid. p. 8,
 Morice BUmar-vol2 p. 64,
 Morris RegSoAMar p. 13,
 StAnthonlin p. 33;
 1589 Maurice bruton1 p. 48,
 Morris DEmar-vol2 p. 19;
 1590 Maurice bruton1 p. 49,
 Morice BUmar-vol2 p. 65;
 1592 mauryce HWCP2 p. 10;
 1593 Maurice bruton1 p. 53;
 1597 Maurice ibid. p. 55;
 1598 Maurice ibid. p. 56;
 1599 Morris DEmar-vol2 p. 42
- ◑ 1541 Morry BarnstapleBap p. 2
- Middle French
- ● 1573 maurice WCS p. 9
- Walloon
- ● 1583/4 Morise RWC p. 8
 
- France
- 
- Latin
- ● 1022 Mauritius (nom) DocMonSav p. 99;
 1101x1129 Mauricius (nom) CartStPC XXXIII;
 1138x62 Mauricii (gen) clairvaux-12thc 66;
 1201 Mauritii (gen) NDParisII 2-XLVIII;
 1301 Mauricii (gen) MemPic-vol17 p. 176,
 Mauricius (nom) ibid. p. 206;
 1378 Mauricio (dat) hanquetvol1 623;
 1471 Mauricio (abl) MHCG2 234
- ◑ c823 Mauriciolus (nom) irminon-vol2 29, CE
- Old French
- ● 1292 Morise (obl) HistHdVParis p. 112;
 1296 Morise paris1296 p. 56,
 (obl) HistHdVParis p. 131;
 1297 Morise (obl) ibid. p. 136;
 1298 Morise (obl) ibid. p. 139,
 Morize (obl) ibid. p. 139;
 1299 Morise (obl) ibid. p. 146;
 1313 Morise Paris1313 p. 9
- ◑ 1301 Mouret (obl) MemPic-vol17 p. 292
- Middle French
- ● 1386 Morice MemBret-II col. 513;
 1440 Morice Laroche no. 5;
 1493 Morice MSR1838 p. 376
- ◑ 1421 Moriset favier 65;
 1479 Morisset Laroche no. 2;
 1563 Moricet RegPCC-1 p. 533
 
- Germany
- 
- Latin
- ● 1274 Mauricius (nom) UrkMeck1 no. LXiX
- Middle French
- ● 1548 Moris MHCG2 316
- Early New High German
- ● 1403 Mauritze (nom) mairhofer DCLXXIV;
 1497 Moritz Nurn1497 1628
 
- Hungary
- 
- Latin
- ● 1351 Mauricy (gen) CDH-IX-II I
 
- Ireland
- 
- Latin
- ● fin12thC Mauricius (nom) MunDocIr III, p. 22,
 Moricius (nom) ibid. III, p. 13,
 Moriz (nom) ibid. III, p. 6;
 1430 Mauricii (gen) RegOct 47,
 Mauricium (acc) ibid. 89;
 1431 Mauricio (dat) ibid. 92;
 1433 Mauricio (abl) ibid. 57;
 1434 Mauricio (dat) ibid. 64,
 Mauricium (acc) ibid. 64,
 Mauricius (nom) ibid. 117;
 1435 Mauricio (abl) ibid. 68;
 1460 Moricio (abl) ibid. 28;
 1496 Mauricio (abl) ibid. 35
- Early Modern English
- ● 1540 Maurice Fiants-1 109
 
- Italy
- 
- Latin
- ● 584 Mauricio (abl) CartYonne1 III;
 1326 Mauritio (abl) Friuli-14thC no. 437
 
- Latvia
- 
- Latin
- ● 1286 Mauricio (dat) RigSB 1024;
 1287 Mauricio (dat) ibid. 1037;
 1288 Mauricio (dat) ibid. 996;
 1290 Mauricio (dat) ibid. 345;
 1291 Mauricio (dat) ibid. 348;
 1292 Mauricio (dat) ibid. 696;
 1295 Mauricio (dat) ibid. 753;
 1297 Mauricii (gen) ibid. 800
 
- The Netherlands
- 
- Middle Dutch
- ● 1478 Mauricius (nom) GesOIJ-3 p. 153
 
- Poland
- 
- Latin
- ● 1228 Mauritius (nom) hennes-vol1 p. 81;
 1275 Moris (nom) CDT1 XXIII;
 1282 Mauricius (nom) UrkMeck1 no. LXXVII
 
- Scotland
- 
- Latin
- ● 1376 Mauricio (dat) morton-vol1 16,
 Moricio (dat) ibid. 16
 
- Spain
- 
- Latin
- ● 1124 Mauricii (gen) CDSS III,
 Mauritius (nom) ibid. IV
 
- Switzerland
- 
- Latin
- ● 1195 Mauritius (nom) CartHaut 29;
 1214 Maricius (nom) ibid. 32;
 1236 Mauricium (acc) ibid. 41,
 Mauricius (nom) ibid. 41
 
- Wales
- 
- Latin
- ● 1185xc1208 Meuric (nom) Pryce-1st no. 4;
 1198 Meuryg (gen) ibid. no. 5,
 Meyrug (nom) ibid. no. 5;
 1206 Meuric (abl) ibid. no. 9;
 1208 Meurig (abl) ibid. no. 6,
 Meyrig (nom) ibid. no. 6;
 1453 Meurig (nom) ArchCambIII p. 69;
 1455 Meurig (nom) ibid. p. 258;
 1456 Meuric (nom) ibid. p. 258,
 Meurig (nom) ibid. p. 258
- Early Modern English
- ● 1577 Morice RegLlantrithyd p. 61;
 1584 Morice ibid. p. 33;
 1591 Mirick ibid. p. 35,
 Myricke ibid. p. 62;
 1597 Myryk ibid. p. 1;
 1599 Mirick ibid. p. 1
- Welsh
- ● 1560 Moryce RegCon1 p. 19;
 1582 moris ibid. p. 38;
 1583 Moris ibid. p. 40
 
Cite as: S.L. Uckelman. "Maurice". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2023, no. 1. http://dmnes.org/2023/1/name/Maurice.