Adrius sits next to 5 phonetic neighbors — Adrian, Hadrian, and Adrien are the closest matches by sound. Most share Adrius's Latin-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the Adriatic, the dark sea"
"light, illumination"
"great, venerable"
"morally right, virtuous, just"
"son of Tule"
"God is gracious (John) + beloved (David)"
"brave, vigorous power"
"from Capri, the island of wild goats"
"bold, narrow strait"
"son of encouragement"
"great peace"
"of Julius, belonging to the Julian family"
"one who resembles God"
"modern American blend name, no single etymology"
"salvation of the Lord"
"modern American creation with roots in Keon (God is gracious)"
"brave ruler, powerful leader"
"priest"
"follower of Dionysus (god of wine)"
"lover of horses"
Similar sound: These names share phonetic patterns with Adrius — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Adrius.
Rhythm: Adrius is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.