Keyleth sits next to 3 phonetic neighbors — Caeleth, Kaylee, and Caleth are the closest matches by sound. Most share Keyleth's Celtic-inspired fantasy-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"graceful, nature-connected"
"He whom Yahweh remembered"
"Unparalleled; the singular and absolute"
"pure, clean, innocent"
"elf warrior (alternative etymology)"
"modern invented name"
"little warrior"
"infinite divine light"
"light of the Almighty, Shaddai is light"
"a rousing song of praise or national identity"
"Son of Otto"
"noble descendant"
"benevolent king"
"without destruction, undying"
"noble strength"
"moisture that quenches thirst"
"from Hadria, dark and rich"
"little Hasan (diminutive of good)"
"righteousness of the religion/faith"
"diminutive of Andrej (Andrew)"
"one who follows at the heel"
Similar sound: These names share phonetic patterns with Keyleth — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Celtic-inspired fantasy origins, giving them the same cultural heritage as Keyleth.
Rhythm: Keyleth is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.