Atanya sits next to 4 phonetic neighbors — Tanya, Atanya, and Tania are the closest matches by sound. Most share Atanya's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"gift of God, God has given"
"Daughter of the sea or sea-born"
"longevity, wisdom"
"tranquil, safe, sound"
"white, pure, bright"
"joyful, festive"
"beloved, of the tower"
"Variant of Tiana; possibly from Tatiana (fairy queen) or a diminuti..."
"she who lives, alive"
"invented name with musical -qua suffix"
Similar sound: These names share phonetic patterns with Atanya — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Atanya.
Rhythm: Atanya is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.