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Dictionary of Medieval Names
from European Sources

Morgan m. Old Welsh, Old Breton, Cornish Morcant, from Proto-Celtic *mori 'sea' + an uncertain element.

The name of a few early Brythonic and Welsh kings.

Morgan & Morgan s.n. Morgan note two incorrect etymologies of the name which have led to interesting connections between Morgan and other names. They report an example of Seaborn which was "a name intended to translate Morgan", on account of a false etymology deriving the second element from geni 'to be born'. The name has also been connected to Pelagius, due to the meaning of the prototheme.

England
English
1529 morgan PP-HenV p. 7; 1531 Morgan SaxhamSf p. 121; 1583 Morgaine StAnthonlin p. 30; 1587 Morgan DEmar-vol2 p. 13; 1590 Morgan ibid. p.22; 1592 Morganne StAnthonlin p. 35
Cite as: S.L. Uckelman. "Morgan". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 2. http://dmnes.org/2015/2/name/Morgan.