Betha sits next to 4 phonetic neighbors — Bertha, Beth, and Bette are the closest matches by sound. Most share Betha's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"life"
"little star, radiant one"
"To rejoice or exult"
"precious, lovely (blend of Alana and Amanda influences)"
"beloved friend"
"born on Christmas Day"
"gift of God"
"daylight, brightness"
"Bright and clear; variant of Serena"
"Elevated, exalted"
Similar sound: These names share phonetic patterns with Betha — 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 Betha.
Rhythm: Betha is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.