Arsenio sits next to 5 phonetic neighbors — Antonio, Cornelio, and Fabricio are the closest matches by sound. Most share Arsenio's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"virile, masculine, strong"
"lord of the earth, husband of the earth"
"devoted to Demeter"
"from Cyprus"
"flat-footed"
"God is gracious"
"powerful ruler"
"lover of earth, earth-born"
"God is beloved"
"God is salvation"
"Yahweh is gracious"
"resolute protector"
"beautiful, handsome"
"of the sun, relating to the sun"
"burning, fiery one"
"well-pleasing, excellent"
"the meadows, fertile plains"
"famous home, famous in homeland"
"of the Lord"
"of the golden family (Aurelii)"
"moonlit night, quality of moonlight"
Similar sound: These names share phonetic patterns with Arsenio — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Arsenio.
Rhythm: Arsenio is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.