Amiliana is likely an elaboration of Emiliana, from Latin Aemilius, associated with striving or excellence.
Amiliana has the feel of a name recovered from a forgotten manuscript — and in a sense, its roots do stretch back to ancient Rome. The name appears to be a creative elaboration of Emiliana (or Aemiliana), the feminine form of the Roman family name Aemilius, one of the great patrician gentes of the Republic. The Aemilii included Lucius Aemilius Paullus, the consul who defeated Macedon at the Battle of Pydna in 168 BCE, and the family gave its name to the Via Aemilia, the road that still bisects northern Italy.
The saint Emiliana was an early Christian holy woman, aunt to Pope Gregory the Great, which cemented the name's use throughout medieval Catholic Europe. The "Am-" opening, whether through Amelia, Amalia, or Amara, brings its own independent resonance. Amelia itself likely derives from the Germanic "amal," associated with work and industriousness, and was memorably borne by Amelia Earhart, the aviation pioneer who became a global symbol of courage and possibility.
Amiliana seems to fuse these two traditions — the Roman Emiliana and the Germanic Amelia — into a single flowing name, a blending that gives it a richness greater than either ancestor alone. In contemporary nurseries, Amiliana is rare enough to feel distinctive but phonetically close enough to Emiliana, Amelia, and Ariana to feel immediately pronounceable. Its four flowing syllables give it a genuinely musical quality, and it carries the dual inheritance of Roman civic grandeur and Germanic vigor. It is a name for a child whose parents wanted something ancient, beautiful, and wholly their own.