Ithan sits next to 5 phonetic neighbors — Ethan, Ithaan, and Aidan are the closest matches by sound. Most share Ithan's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"long-lived, permanent"
"prince, king"
"desert demon or fallen angel"
"sea, ocean (via Kai)"
"bright heart, brilliant mind"
"he will enlighten"
"gift of God"
"courtesy, respect, gratitude"
"God who sees me"
"of the gods"
"bright fame"
"son of Oeneus, warrior"
"king's settlement"
"gatherer, collector"
"father, head of monastery"
"round, barrel"
"lapis lazuli (the stone)"
"beyond, one who crossed over"
"home ruler"
"God is gracious (via Zane/Zaid roots)"
"Kent dale, valley settlement"
Similar sound: These names share phonetic patterns with Ithan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Ithan.
Rhythm: Ithan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.