Jupiter sits next to 2 phonetic neighbors — Juniper and Juliet are the closest matches by sound. Most share Jupiter's Latin/Proto-Indo-European-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sky father, father god"
"sea breeze, trade wind"
"free woman"
"promise, saying"
"cheerful, glad"
"descendant of the dark-eyed"
"bitter grace (combined etymology)"
"blind (saint's epithet)"
"stone worker, mason"
"liberation, ultimate peace, enlightenment"
"hazel tree"
"from Ávila"
"beautiful, pretty"
"festive gathering (from céilí)"
"island, beautiful"
"join, connect"
"lady, woman"
"spear ruler"
"counsel power"
"first rose, first flower of spring"
"narrow road, pathway between hedges"
Similar sound: These names share phonetic patterns with Jupiter — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin/Proto-Indo-European origins, giving them the same cultural heritage as Jupiter.
Rhythm: Jupiter is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.