Adaiah is a Hebrew biblical name meaning "Yahweh has adorned" or "God has made."
Adaiah is an ancient Hebrew name of remarkable Old Testament depth. Its etymology derives from the root עדה (adah), meaning "to adorn" or "to pass on," combined with the divine suffix יה (Yah), a shortened form of the sacred name of God. Together, Adaiah is most commonly translated as "adorned by God," "Yahweh has ornamented," or "God's witness" — a name dense with theological meaning even at the syllabic level.
The name appears multiple times across the Hebrew scriptures. One Adaiah was the maternal grandfather of King Josiah, the reforming king of Judah described in Second Kings. Another Adaiah was a Levitical priest who returned to Jerusalem after the Babylonian exile, documented in Nehemiah.
Unlike many Biblical names that were assigned exclusively by gender, Adaiah appears in the Old Testament applied to both male and female figures, giving it an unusually broad scriptural foundation. This dual-gender history makes it adaptable to contemporary naming conventions. For most of Western history Adaiah remained largely within Jewish and deeply scriptural Christian communities, treasured precisely for its obscurity — a name that signaled serious engagement with the Hebrew text rather than casual Biblical borrowing.
Its revival in the twenty-first century reflects a broader trend toward recovering rare Old Testament names that had been eclipsed by their more famous neighbors. Adaiah today carries an air of careful scholarship and spiritual intentionality, while its flowing four-syllable rhythm — ah-DAY-uh or ah-DIE-uh, depending on tradition — gives it a gentle musicality entirely its own.