Marnie sits next to 5 phonetic neighbors — Barnie, Harney, and Marney are the closest matches by sound. Most share Marnie's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"star of the sea"
"beloved, dear"
"to rejoice, exultation"
"Woden's day"
"beautiful and rising"
"possibly 'healer' + '-line' suffix"
"pledged to God, God is my oath"
"to ascend, rise, be exalted"
"of the lake, water"
"worthy of wonder"
"sea dragon, small"
"from Brixton, the brick settlement"
"something that heals or corrects"
"mother, great one"
"beautiful"
"beauty, strength, luxury"
"flowing water, to drip or trickle"
"free woman, strong woman"
"cheerful, merry, joyful"
"pledged to God, my God is an oath"
"joining, fitting together"
Similar sound: These names share phonetic patterns with Marnie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin/Hebrew origins, giving them the same cultural heritage as Marnie.
Rhythm: Marnie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.