Arleen sits next to 5 phonetic neighbors — Arlene, Arline, and Marlene are the closest matches by sound. Most share Arleen's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pledge, oath (possible Celtic origin)"
"bird-like, soaring one"
"settlement of Paega (a personal name)"
"queen"
"from the long ridge"
"divine wisdom"
"lily, rose"
"meadow (sley element from Old English leah)"
"moon goddess"
"open grassland, treeless plain"
"Mack's stream, great stream"
"slender, fair"
"dove (bird of peace)"
"work power; powerful ruler"
"whole, universal"
"treatment, antidote"
"Ireland, from Eriu goddess"
"pledged to God (via Susannah)"
"wanderer"
"fair, white, blessed"
"feminine form of John"
Similar sound: These names share phonetic patterns with Arleen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Celtic 'Arlen' origins, giving them the same cultural heritage as Arleen.
Rhythm: Arleen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.