Kurtis sits next to 3 phonetic neighbors — Curtis, Kurt, and Cortez are the closest matches by sound. Most share Kurtis's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"courteous, well-bred, polite"
"skilled, expert, proficient"
"to rejoice, happy, glad"
"modern coined name"
"friend of the gods (Germanic tradition)"
"God is my salvation"
"safe haven, shelter, refuge"
"mild, gentle"
"Yahweh is my God"
"island meadow"
"of the gods"
"allies, friends"
"God is gracious"
"God supports, God heals"
"resolute protector"
"lion man (from Leander)"
"rock (via Peter)"
"descendant of Braonán (moisture/sorrow)"
"split, torn apart"
"olive tree man"
"from Sebastos (venerable city)"
Similar sound: These names share phonetic patterns with Kurtis — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French origins, giving them the same cultural heritage as Kurtis.
Rhythm: Kurtis is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.