Etham sits next to 4 phonetic neighbors — Ethan, Etham, and Edam are the closest matches by sound. Most share Etham's biblical cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"border of the sea, with them"
"to twist, to wrestle with"
"father of light"
"father of many nations"
"God is my joy"
"God will teach, God's light"
"father of many"
"flowing water, river"
"my light (variant of Lior)"
"God saves"
"God's song; singing of God"
"heart, courageous heart"
"of God, divine man"
"Yahweh has bestowed"
"gift, wealthy"
"work of God"
"God is beloved"
Similar sound: These names share phonetic patterns with Etham — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Etham.
Rhythm: Etham is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.