Likely a modern variant of Daisy or Asia
Daesia is a contemporary American name, most likely created as a phonetic blend of the floral name Daisy and the continental name Asia. It may also be interpreted as a stylized spelling variant of Deja, from the French word for 'already'. Because of its modern construction, it lacks a singular ancient etymology.
Less common today
Daesia isn't in the latest US Top 1000. It last peaked at #9,524 in 1995.
US births per 5-year period, 1990βpresent (SSA data).