Adayah, a feminine appellation of Hebrew origin—a variant of the biblical Adaiah—connotes “adornment of the Lord” and thus carries associations of divine favor and grace. Its morphemic structure unites the Hebrew root Ada (ornament) with the theophoric suffix Yah (denoting Yahweh), yielding a semantically precise and theologically resonant designation. Since its earliest recorded appearance in the United States Social Security Administration’s registries in 2000, when it held the 894th rank, Adayah’s position has fluctuated within the lower hundreds, most recently occupying the 932nd spot in 2024 with eighteen documented births, a pattern that underscores both its enduring appeal and its selective adoption among American families. Phonetically stable across English dialects as ah-DIE-yah (/ʌˈdaɪjə/), the name Adayah offers an academically informed, culturally grounded choice for those seeking a rare yet historically anchored option.