Jelaine sits next to 4 phonetic neighbors — Elaine, Jolene, and Janine are the closest matches by sound. Most share Jelaine's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"shining bright, torch (from Elaine/Helen)"
"noble one, of aristocratic birth"
"feminized form of Burl with melodic -line suffix"
"alder tree grove (from Gaulish via Vernon)"
"little joy, dear song"
"rounded growth on tree, knotty wood"
"lilac, bluish"
"the dawn, daybreak"
"peaceful ruler"
"joyful round song"
"Island (from the Scottish island of Tiree)"
"little Jon, feminine form of Jon"
"resolute protector"
"lake, pool"
"noble strength (via Audrey root)"
"Variant of Joan/Joanne, from Hebrew Yohanan meaning God is gracious..."
"dear friend"
Similar sound: These names share phonetic patterns with Jelaine — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Jelaine.
Rhythm: Jelaine is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.