Dictionary of Medieval Names
from European Sources

Mordecai m. Hebrew מָרְדֳּכַי, of uncertain origin but related to Marduk, a Babylonian god.

The name of an Old Testament character. Wycliffite Bible (1395): Mardoche.

France
Middle French
1563 Mardochée RegPCC-1 p. 21
Cite as: S.L. Uckelman. "Mordecai". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Mordecai.