Mabelyn sits next to 5 phonetic neighbors — Mabeline, Mabel, and Madeline are the closest matches by sound. Most share Mabelyn's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"lovable, dear"
"possibly lion of God or noble one"
"God is my help"
"princess"
"valley flower"
"lion (Hebrew root)"
"to live, to dwell"
"like water, flowing"
"defender of mankind (via Alexa/Alexander root)"
"of noble kind"
"son of the little king (surname)"
Similar sound: These names share phonetic patterns with Mabelyn — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Mabelyn.
Rhythm: Mabelyn is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.