Aayu sits next to 4 phonetic neighbors — Ayu, Ayush, and Aayush are the closest matches by sound. Most share Aayu's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"life, lifespan"
"stream, to flow"
"the greatest"
"inaccessible, deep; heroic"
"God is gracious"
"village at the ford; river-crossing settlement"
"from the fortress town"
"God ruler; one who rules with divine authority"
"drawn from the water"
"apocalyptic vision, final truth"
"little fire"
"Nectar of immortality"
"of noble kind"
"son of William"
"the pilgrim, one who has completed the Hajj"
"anointed"
"narrow channel, strait"
"divine supreme being, cosmic power"
Similar sound: These names share phonetic patterns with Aayu — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Aayu.
Rhythm: Aayu is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.