Kayleigh sits next to 4 phonetic neighbors — Kaylee, Hailey, and Bailey are the closest matches by sound. Most share Kayleigh's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"slender, slim and fair"
"renown, honor"
"glowing ember meadow"
"entire, all-encompassing"
"knowledge, wisdom"
"one's own meadow, Aen's clearing"
"bright, shining light"
"heavenly garland, child of heaven"
"noble kind, noble nature"
"honor, victory"
"pure, clear"
"bitter"
"wise protector"
"full of love"
"crown of laurels"
"my God has answered"
"heavenly, of the sky"
"beloved"
"beautiful, lovely"
"meadow dwelling"
"pure (via Kayla/Katherine association)"
Similar sound: These names share phonetic patterns with Kayleigh — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Kayleigh.
Rhythm: Kayleigh is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.