Dictionary of Medieval Names
from European Sources

Euphemia f. Ancient Greek εὖ 'good, well' + Ancient Greek φημί 'to speak'.

The name of a 4th C saint, a 6th C empress consort of the Byzantine Empire, a 12th C queen consort of Kiev, a 14th C queen consort of Norway, and a 14th C queen consort of Scotland.

England
Latin
1189 Eufemia (nom) GASurv p. 192
Early Modern English
1585 Effie COmar-vol5 p. 7
France
Latin
1246 Eufemia (abl) NDParisII 2-CVI; 1301 Yfeme (nom) MemPic-vol17 p. 176
Old French
1296 Yfame paris1296 p. 54
Germany
Latin
1220 Euphemia (nom) hennes-vol1 48
Italy
Latin
1034 Eufimia (nom) skinner p. 113
Scotland
Latin
1425 Eufamie (dat) RMSRS-2 19
Scots
1565 Eufamia PGB
Cite as: J. Uckelman, S.L. Uckelman. "Euphemia". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Euphemia.