Ilarion

Bulgarian and Macedonian form of HILARION.

HILARION   male   Ancient Greek
Derived from Greek ‘ιλαρος (hilaros) meaning "cheerful". This was the name of a 4th-century saint, a disciple of Saint Anthony.
EQUIVALENTS
ANCIENT GREEK: Hilarion
BULGARIAN: Ilarion
MACEDONIAN: Ilarion
RUSSIAN: Illarion