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.
You searched for names like
"eagle, nobleman"
"modern American invention with Latin roots"
"immortal"
"Lamb of God (religious symbolism)"
"supplanter"
"high prominence, brow"
"wood-dweller"
"benevolence, humaneness"
"raven warrior"
"quality, excellence of character"
"resurrection, one who will rise again"
"may God protect"
"one who lives in a valley"
"gift of jasmine"
"beautiful, most beautiful"
"all-wise"
"something deserved, virtue"
"law settlement, from Lexington"
"one who lays slates, roofer"
"precious, anointed"
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.