Cecilio sits next to 4 phonetic neighbors — Cecilia, Basilio, and Emilio are the closest matches by sound. Most share Cecilio's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"blind"
"light, splendor, radiance"
"treasure of God"
"God will strengthen, strengthened by God"
"gentle, tame"
"resurrection, one who will rise again"
"the new house"
"of the vine, wine merchant"
"protector, guardian"
"flourishing, vigorous"
"wrathful, full of wrath"
"brave-hearted, bold spirit"
"divine presence"
"spear ruler (from Gerardo)"
"little elk / noble one (Germanic interpretation)"
"God will increase, God will add (José)"
"representative, lieutenant"
Similar sound: These names share phonetic patterns with Cecilio — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Cecilio.
Rhythm: Cecilio is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.