Nylo sits next to 4 phonetic neighbors — Milo, Kylo, and Nilo are the closest matches by sound. Most share Nylo's American-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"invented modern name"
"resolute protector"
"of January, born in January"
"son of Thomas, son of the twin"
"God is gracious"
"ancient, enduring"
"asked of God, divine request"
"gray valley, son of the gray one"
"song, joy"
"gift of God"
"Yahweh is merciful"
"one who throws, thrower"
"kind birth"
"God is salvation (via Joshua/Hebrew connection)"
"thankful, God has heard"
"from Wynstan's estate"
"beauty, grace"
"healer"
"calm, tranquil"
"exalted brother, my brother is high"
"from Brittany (Celtic region)"
Similar sound: These names share phonetic patterns with Nylo — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American origins, giving them the same cultural heritage as Nylo.
Rhythm: Nylo is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.