Idonea

Medieval English name, probably a Latinized form of IÐUNN. The spelling may have been influenced by Latin idonea "suitable". It was common in England from the 12th century.

IDUNN   female   Norse Mythology, Ancient Scandinavian
Probably derived from Old Norse "again" and unna "to love". In Norse mythology Iðunn was the goddess of spring and immortality whose responsibility it was to guard the gods' apples of youth.
EQUIVALENTS
ANCIENT SCANDINAVIAN: Iðunn
ENGLISH: Idony
NORSE MYTHOLOGY: Idun, Iðunn