Ilyanna sits next to 4 phonetic neighbors — Iliana, Eliana, and Ileana are the closest matches by sound. Most share Ilyanna's Slavic cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the Lord is my God"
"dear one, darling"
"lake (lynn element)"
"joy, music (archaic)"
"treetop, summit"
"tree"
"night creature, storm demon"
"miracle (if derived from Hebrew Nasia)"
"the red planet"
"great queen, divine queen"
"protector of men"
"compound of Mary and Louise"
"hay meadow + lake (blended)"
"brave in battle"
"fertile, productive"
"from Scotland, a Scot"
"song, melody, air"
"from the long ridge"
"helpful, descendant of the helpful one"
"royal sky"
Similar sound: These names share phonetic patterns with Ilyanna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Slavic origins, giving them the same cultural heritage as Ilyanna.
Rhythm: Ilyanna is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.