Adin sits next to 3 phonetic neighbors — Aiden, Aden, and Odin are the closest matches by sound. Most share Adin's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"slender, gentle, delicate"
"meadow town"
"beloved, dear (Yiddish Lieb)"
"hard, unyielding"
"creative spelling of Rustin"
"servant of Marduk"
"lapis lazuli, beauty"
"the fifth"
"nobleman, warrior"
"blond, yellow-haired"
"from Sweden, soft napped leather"
"handsome one, bright fire"
"woodland near the elder trees"
"dedicated, trained, initiated"
"medieval local official, administrator"
"capable with a spear"
"dark red, crimson"
"God is most high"
"happy estate"
"beloved, dear one"
"eternal, hidden"
Similar sound: These names share phonetic patterns with Adin — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Adin.
Rhythm: Adin is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.