Leonor sits next to 4 phonetic neighbors — Eleanor, Eleonora, and Lenora are the closest matches by sound. Most share Leonor's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"shining light"
"noble, distinguished"
"queen (short form of Regina)"
"torch, light"
"violet flower, purple-blue bloom"
"Saint Anne"
"pure, unsullied"
"God's gift"
"beautiful"
"coral, the marine organism"
"mercy (if from Eleanor)"
"my delight, my pleasantness"
"moon"
"gentle, tender (linden tree)"
"God will increase"
"life-giving water from the sky"
"member of the Gautz/Goth tribe"
"of the Franks tribe"
"protector of mankind"
"sea breeze, trade wind"
Similar sound: These names share phonetic patterns with Leonor — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Leonor.
Rhythm: Leonor is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.