Eidan sits next to 4 phonetic neighbors — Aidan, Ethan, and Idan are the closest matches by sound. Most share Eidan's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"everlasting, eternal"
"son of Maurice"
"chosen deliverer, consecrated leader"
"father of a multitude"
"peace"
"servant, worshipper of God"
"God is my strength"
"sky, ambiance"
"beautiful"
"Yahweh has helped"
"my rock is God"
"the Aramean people's land"
"pledged, devoted"
"peace, peaceful"
"tall, upright like a palm tree"
"peaceful, tranquil"
"exalted one"
Similar sound: These names share phonetic patterns with Eidan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Eidan.
Rhythm: Eidan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.