Gemma
  f.
  
  Latin gemma 'gem, precious stone' or a vernacular feminine form of James (in England).
  
  
  
  
- England
- 
- Latin
- ● 1240 Gemma (nom) StPaulDom p. 120
 
- Italy
- 
- Latin
- ● 954 Gemma (nom) skinner p. 113;
 1089 Gemma (nom) ibid. p. 115;
 1348 Giemme (dat) INP 23;
 1387 Gemma (nom) Venditti II-2053,
 Gemme (gen) ibid. II-2066
 
Cite as: J. Uckelman, S.L. Uckelman. "Gemma". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2020, no. 1. http://dmnes.org/2020/1/name/Gemma.