Betty sits next to 4 phonetic neighbors — Betsy, Beth, and Bette are the closest matches by sound. Most share Betty's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is my oath"
"luminous, brilliant"
"birthday, born on Christmas"
"maple tree"
"blessed"
"famous warrior"
"gift of God"
"gift, grace"
"abundance"
"throne, sun (alternate Persian/Greek etymology)"
"one who hunts"
"home ruler, estate ruler"
"from the raven meadow (possible)"
"son of Carr, from the marsh"
"weary"
"pure, victorious meadow"
"lily"
"mighty in battle"
"fragrant spice"
"birch tree meadow"
"modern coined name, meaning unclear"
Similar sound: These names share phonetic patterns with Betty — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Betty.
Rhythm: Betty is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.