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Dictionary of Medieval Names
from European Sources

Hilary m. Latin hilarius 'cheerful, lively, light-hearted'.

The name of a 3rd C saint and martyr, a 4th C doctor of the church, a 5th C pope, a 5th C saint, and a 6th C saint.

Belgium
Dutch
1597x1598 Hilaris BoonenGes p. 352
France
Latin
519 Elario (nom) CartYonne1 I; 848 Hilario (abl) CartNoaille III; 1292 Hilarius (nom) MemBret-I 1103
Old French
1296 Alaire paris1296 p. 4
Middle French
1588 Hilaire raymond1588 p. 568
Italy
Latin
1376 Illario (abl) DouGen1 p. 45
Italian
1513x1521 Lario LeoX p. 35
Cite as: J. Uckelman, S.L. Uckelman. "Hilary". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2021, no. 1. http://dmnes.org/2021/1/name/Hilary.