Romilly sits next to 4 phonetic neighbors — Rosalie, Romilda, and Romily are the closest matches by sound. Most share Romilly's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the Roman settlement"
"ivy climbing plant"
"noble, exalted, powerful"
"modern blend of Brayden + -len suffix"
"grace, favor"
"eternal, unfading"
"graceful, elegant"
"bright one"
"valley + lake, meadow-pool"
"free, from France"
"heavenly, sky-like"
"merciful, gracious"
"meadow, clearing"
"who is like God (if from Michelle root)"
"port, harbor"
"dear little rose"
"son of Jack"
"no traditional meaning (invented name)"
"invented combination name"
"noble power"
Similar sound: These names share phonetic patterns with Romilly — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin via French origins, giving them the same cultural heritage as Romilly.
Rhythm: Romilly is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.