Dictionary of Medieval Names
from European Sources

Emerald f. Old French e(s)meraude, -alde from Latin smaragdos 'green precious stone, emerald; beryl; jasper'.

France
Latin
1564 Emerauda (nom) FlorLyon p. 172
Old French
1292 Esmeraude (obl) HistHdVParis p. 112
Cite as: S.L. Uckelman. "Emerald". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Emerald.