Athiran sits next to 4 phonetic neighbors — Adhiran, Athira, and Arun are the closest matches by sound. Most share Athiran's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fiery, blazing"
"modern American coinage; possibly echoing Lateran (the Roman hill)"
"day's light, brightness"
"God is salvation"
"farm garden, upper estate enclosure"
"Noble, patrician (via Patrick)"
"grace, favor"
"pledged to God"
"bell ringer"
"writer, creator of works"
"dwelling place"
"noble wolf"
"Exclamation of triumphant discovery"
"ocean, sea"
"home ruler"
Similar sound: These names share phonetic patterns with Athiran — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Tamil origins, giving them the same cultural heritage as Athiran.
Rhythm: Athiran is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.