Elowen sits next to 4 phonetic neighbors — Elodie, Rowan, and Eilidh are the closest matches by sound. Most share Elowen's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"elm tree"
"pledged to God"
"meadow clearing"
"day of rest and worship"
"jewel of the sea"
"ash tree pool"
"pearl"
"my God is the Lord (via Hebrew Elijah)"
"white, blessed + peace"
"vine, climbing plant"
"noble, of noble kind"
"pearl"
"consecrated, honored"
"Mae (spring month) + Lynn (lake)"
"gentle horse"
"song thrush (a songbird)"
"white, fair, holy"
"child of light"
Similar sound: These names share phonetic patterns with Elowen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Cornish origins, giving them the same cultural heritage as Elowen.
Rhythm: Elowen is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.