| Dacey | | | Gender: | Unisex | | Origin: | Irish |
| | | | | "Tenant, vassal". Irish surname transferred to unisex forename use, itself originally a nickname for a feudal servant, a member of the Déise, a word which ultimately traces back to Indo-European *dem-s, meaning "house". |
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| Daciana | | | Gender: | Female | | Origin: | Romanian |
| | | | | "Wolf". Romanian name derived from Roman Dacia, the name for the region that is today Moldova and Romania. According to Strabo, the Dacians were originally known as the daoi, from Phrygian daos, meaning "wolf". It is interesting to note, too, that daoi is the Gaelic word for a "wicked man". |
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| Dada | | | Gender: | Female | | Origin: | African |
| | | | | African Yoruba name meaning "curly hair". |
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| Daffodil | | | Gender: | Female | | Origin: | English |
| | | | | "Asphodel". English name derived from the name of the flower, itself from Latin asphodelus, from Greek asphodelos. In Greek mythology, it is described as a pale yellow deathless kind of lily flower that overspreads the plains of Hades and is the favorite food of the dead. |
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| Dafne | | | Gender: | Female | | Origin: | Italian |
| | | | | Italian form of Greek Daphne, meaning "laurel". |
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