Noctis sits next to 3 phonetic neighbors — Nexus, Norris, and Doris are the closest matches by sound. Most share Noctis's Latin-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the night"
"little Hugh, small-hearted one"
"son of Dionysus"
"that which is about to arrive"
"treasurer, keeper of treasure"
"solid, strong foundation"
"homestead on the rock"
"a group of birds, especially quail"
"distinguished leader"
"fire brand, flaming sword"
"supplanter"
"stone marker, boundary"
"descendant of Comhradha"
"from the island of Cyprus"
"dweller at the white cultivated land"
"modern invented name variant"
"noble, powerful"
"little fire (via Aidan)"
"royal, kingly"
"from Ludwig/Louis (via Swedish)"
Similar sound: These names share phonetic patterns with Noctis — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Noctis.
Rhythm: Noctis is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.