Abb sits next to 4 phonetic neighbors — Abe, Ab, and Abbott are the closest matches by sound. Most share Abb's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"father"
"Farmer; earth worker"
"lord of the earth, creation of the good earth"
"blessed"
"short form of Ari (lion) or Aaron (high mountain)"
"a legend, a tale"
"occupational surname for a chapel keeper"
"God's gift"
"bright one"
"gift of God"
"unknown, possibly nickname"
"settlement on a hill"
"Inspired by Santos/Saint (Latin sanctus, holy) with a creative mode..."
"ruler of the land"
"defender of the people (short form of Alexander)"
"steward, estate manager"
Similar sound: These names share phonetic patterns with Abb — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Semitic/Hebrew/Aramaic root ab origins, giving them the same cultural heritage as Abb.
Rhythm: Abb is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.