Arlyn sits next to 3 phonetic neighbors — Arlen, Marlin, and Darlin are the closest matches by sound. Most share Arlyn's English-origin cluster, so the rhythm and vowel shape carry across the list.
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"eagle, nobleman"
"healer"
"Stream, flowing"
"immortal, eternal"
"little red one"
"invented modern name; no historical meaning"
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"may God protect"
"fire, flame (poetic interpretation)"
"little poet"
"high prominence, brow"
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"modern invented name"
"God has remembered"
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Similar sound: These names share phonetic patterns with Arlyn — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Germanic origins, giving them the same cultural heritage as Arlyn.
Rhythm: Arlyn is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.