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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
Cite as: S.L. Uckelman. "Emerald". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Emerald.