Elly sits next to 4 phonetic neighbors — Ellie, Ellee, and Ella are the closest matches by sound. Most share Elly's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bright, shining light"
"virtuous woman"
"beloved, wished-for child"
"noble, high"
"soft, tender"
"fair phantom, white wave"
"who is like God"
"burnt woodland clearing"
"high, noble, strength"
"brave, valiant (from Ry- element)"
"descendant of the dark challenger"
"free-spirited, blissful"
"first light of day, sunrise"
"great, magnificent"
"fresh, blooming, youthful"
"a falling, a flowing"
"love, desire, beauty"
"feminine elaboration of George"
"slender"
"new and graceful"
Similar sound: These names share phonetic patterns with Elly — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek via Latin origins, giving them the same cultural heritage as Elly.
Rhythm: Elly is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.