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"
"healer"
"flowing down, to descend"
"follower of the god of wine and festivity"
"loved, beloved"
"possession, acquired"
"powerful one, full of zeal"
"Lamb; gentle and pure"
"of legend, mythic, extraordinary"
"mountain village; reason of the mountains (Japanese interpretation)"
"the West, where the sun sets"
"diminutive of Antonio"
"little poet"
"Beautifier, one who brings beauty"
"raven"
"descendant of Raghallach"
"he whose aims are fulfilled"
"son of Rawlin, son of Ralph"
"light of the inaccessible divine"
"wealthy guardian, guardian of prosperity"
"clearing west of the settlement"
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.