Ephrain sits next to 3 phonetic neighbors — Ephraim, Efrain, and Efren are the closest matches by sound. Most share Ephrain's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fruitful, doubly fruitful"
"I awake, I am awake"
"from the mountain"
"curved throwing stick, boomerang"
"God is gracious"
"shield wolf, brave protector"
"coined American name; no classical etymology"
"there is one (God)"
"God will raise up"
"one who tames"
"God is gracious"
"ever ruler, eternal king"
"Bright forest; from the forested settlement; variant of Sylvester"
"The love"
Similar sound: These names share phonetic patterns with Ephrain — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Ephrain.
Rhythm: Ephrain is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.