Eitan sits next to 3 phonetic neighbors — Ethan, Aidan, and Etan are the closest matches by sound. Most share Eitan's Hebrew-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"permanent, steadfast"
"father of many nations"
"roofer, one who covers"
"grey hill, army hill"
"from the Denzell estate"
"west wind"
"God has remembered, remembered by God"
"birth, creation"
"God has been gracious"
"cheerful, optimistic"
"of the angel, son of Angelo"
"gift, present"
"dragon, serpent"
"claw of a bird of prey"
"to run fast, a burst of speed"
"all wise (from Norse Alviss)"
"voice of God"
"victory of the people"
"God has healed"
"wealthy gift"
Similar sound: These names share phonetic patterns with Eitan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Eitan.
Rhythm: Eitan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.