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Dictionary of Medieval Names
from European Sources

Katherin m. Masc. of Katherine.

A rare instance of masculine form being formed from a feminine.

Italy
Latin
1527 Catherini (gen) Rome1527 p. 83
Cite as: S.L. Uckelman. "Katherin". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 3. http://dmnes.org/2015/3/name/Katherin.