Eleonor sits next to 5 phonetic neighbors — Eleanor, Eleonora, and Elinor are the closest matches by sound. Most share Eleonor's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bright, shining one"
"flower, blooming beauty"
"gift, wealthy (from Jesse)"
"lake, waterfall"
"treasurer"
"born on Christmas Day"
"God has healed, healed by God"
"pure, maiden"
"calm waters, serene sky"
"snow"
"sand-colored, from the sand"
"joyful, spirited (invented blend)"
"possibly eternal flower (folk etymology)"
"gazelle, swift and graceful"
"strong one"
"dew of God"
"blessed prize"
"anointed one"
"unintelligible speakers (Sioux term for Cheyenne people)"
"reversed form of Maria, beloved of God"
"upholder of good"
Similar sound: These names share phonetic patterns with Eleonor — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek Helen via Old French origins, giving them the same cultural heritage as Eleonor.
Rhythm: Eleonor is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.