Gaspar sits next to 4 phonetic neighbors — Caspar, Jasper, and Casper are the closest matches by sound. Most share Gaspar's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"treasurer, keeper of treasure"
"relating to Easter, Passover"
"defender, advocate"
"Roman, citizen of Rome"
"to thrive, to succeed, prosperous"
"holding fast, steadfast protector"
"well-born, of noble birth"
"of Mars, dedicated to Mars"
"God is gracious (Juan/John) and free man (Carlos/Karl)"
"who is like God"
"Italian form of Paul"
"wounded in the thigh"
"healer"
"little warrior, of Mars"
"one who is complete"
"priceless, of inestimable worth"
"God is gracious"
"God smiles"
"cross, the cross of Christ"
"destroyer of peace"
Similar sound: These names share phonetic patterns with Gaspar — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Persian origins, giving them the same cultural heritage as Gaspar.
Rhythm: Gaspar is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.