Aythana sits next to 3 phonetic neighbors — Athena, Aitana, and Alethea are the closest matches by sound. Most share Aythana's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"mountain, high place"
"long live! (exclamation of celebration)"
"candle, vigil light"
"strong, healthy, vigorous"
"work of God, God's labor"
"joyful, happy"
"beautiful, precious"
"orchid flower"
"the queen"
"refreshed, satisfied"
"creative invented name; possibly a family honor name"
"divine, heavenly (implied)"
"of or from Nazareth"
"new, fresh (creative interpretation)"
"pure, clear"
"from the Tatius family (Roman origin)"
"dear little rose"
"woman from France"
Similar sound: These names share phonetic patterns with Aythana — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Valencian/Iberian origins, giving them the same cultural heritage as Aythana.
Rhythm: Aythana is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.