Mccarty sits next to 4 phonetic neighbors — McCarthy, McCarty, and Carty are the closest matches by sound. Most share Mccarty's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"loving"
"From Laurentum; the bay laurel tree; associated with honor and victory"
"ascent, going up"
"sunrise, aurora"
"noble"
"hawk, bird of prey"
"wide, broad"
"God's love"
"army land"
"page of a book"
Similar sound: These names share phonetic patterns with Mccarty — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Irish origins, giving them the same cultural heritage as Mccarty.
Rhythm: Mccarty is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.