Ather sits next to 4 phonetic neighbors — Arthur, Aether, and Asher are the closest matches by sound. Most share Ather's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"trace, impression, mark left behind"
"little, small"
"serpent, twin (from coatl)"
"dove bird, symbol of peace"
"bold traveler"
"true, genuine; from the Norman place Ver"
"sheep"
"rocky crag"
Similar sound: These names share phonetic patterns with Ather — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Ather.
Rhythm: Ather is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.