Calypso sits next to 3 phonetic neighbors — Callie, Callista, and Lyra are the closest matches by sound. Most share Calypso's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"she who hides, concealer"
"bright, shining light"
"peaceful sky"
"heavenly, of the sky"
"personal magnetism, compelling charm"
"from the city of Venice; the Veneti people"
"praised, celebrated"
"ray of sunshine"
"dreamy, ethereal"
"gift of God"
"gift of God"
"purity, innocence"
"chasteness, virtue"
"modern variant of Riley/Kylie sound family"
"horn, strong-willed"
"God is my oath (via Eliana etymology)"
"crown, wreath, garland"
"resolute protector"
"wished-for child"
"noble and soft/gentle"
"follower of Christ"
Similar sound: These names share phonetic patterns with Calypso — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Calypso.
Rhythm: Calypso is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.