Blythe sits next to 3 phonetic neighbors — Blithe, Blight, and Lythe are the closest matches by sound. Most share Blythe's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"free-spirited, blissful"
"woman of power, female leader"
"beautiful, lovely"
"priest's meadow"
"descendant of Madán"
"land of Éire, emerald isle"
"beautiful, pretty"
"beautiful, noble"
"calm waters, serenity"
"shining light"
"noble, nobility"
"most holy"
"invented modern name"
"pure"
"sea (via Kai)"
"strong, honorable"
"great queen"
"the end, high place"
"warrior's estate, Paega's settlement"
"delight, exuberance"
Similar sound: These names share phonetic patterns with Blythe — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Blythe.
Rhythm: Blythe is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.