Late 19th century; earliest use found in The Century Dictionary. From French mormyre fish of the genus Mormyrus, either from post-classical Latin mormyrus, mormyra or from classical Latin mormȳr.
Definition of mormyr in US English:
mormyr
nounˈmɔːmɪə
Zoology
= mormyrid.
Origin
Late 19th century; earliest use found in The Century Dictionary. From French mormyre fish of the genus Mormyrus, either from post-classical Latin mormyrus, mormyra or from classical Latin mormȳr.