Seab sits next to 4 phonetic neighbors — Seb, Seab, and Seamus are the closest matches by sound. Most share Seab's Latin/Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"venerable; from the revered city"
"religion, faith"
"salvation of the Lord"
"to tie, to bind"
"from the worthy farmstead or settlement"
"source, wellspring"
"wharf, landing place"
"glory of the father"
Similar sound: These names share phonetic patterns with Seab — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin/Greek origins, giving them the same cultural heritage as Seab.
Rhythm: Seab is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.