Sahasra sits next to 4 phonetic neighbors — Sahara, Saraswati, and Sasha are the closest matches by sound. Most share Sahasra's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"infinite, limitless abundance"
"goddess, divine feminine"
"worthy of worship, one who is adored"
"of the evening"
"sapphire, precious blue gem"
"goddess, divine one"
"one who rules, divine sovereign"
"nine, precious"
"praised, knowledgeable"
"of the sacred northeast direction"
"splendid, radiant beauty"
"meaningful existence, purposeful life"
"life, soul, living spirit"
"the black serpent (mythological Naga)"
Similar sound: These names share phonetic patterns with Sahasra — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Sahasra.
Rhythm: Sahasra is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.