Likely a modern American coinage using the -tashia ending popular in late 20th-century naming.
Quatashia is likely a modern American coinage using the -tashia ending popular in late twentieth-century naming. It does not come from a single older root so much as from a recognizable contemporary sound pattern.
The name feels expressive, rhythmic, and distinctly modern. Quatashia belongs to the broad inventive tradition in which syllables are chosen for style, individuality, and musical flow. Its rarity makes it feel personal and specific rather than generic.