Prithvi sits next to 3 phonetic neighbors — Prithvir, Pritvi, and Prithvee are the closest matches by sound. Most share Prithvi's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the vast earth"
"Unique, incomparable, without a second; non-dual"
"golden, of good complexion"
"growing, developing"
"metabolic fire, vital energy"
"he whose aims are fulfilled"
"king, royal"
"one blessed with divine grace, gift of Shiva"
"king, ruler"
"love, pure affection"
"gold"
"Blessing, divine favor"
"one who destroys evil (name of Shiva)"
"strength, grace, given by God"
"unconquerable, invincible"
"virtuous, pure, truthful"
Similar sound: These names share phonetic patterns with Prithvi — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Prithvi.
Rhythm: Prithvi is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.