Jayne sits next to 3 phonetic neighbors — Jane, Jain, and Jade are the closest matches by sound. Most share Jayne's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"angels, of the angels, divine messengers"
"beautiful, pretty"
"unfortunate, ill-omened"
"from Laurentum, laurel place"
"illustrious, renowned"
"feminine diminutive of Antoine/Anthony"
"radiant counsel (via Germanic Ray + Lin)"
"gift, present"
"tail (musical term)"
"from India, land of the Indus"
"the great one, exhilarating"
"honor, fame"
"delicate, dainty, languishing"
"descendant of the king"
"fiery spark, blaze"
"golden ruler"
"free woman, free person"
"primordial goddess of night"
"to follow at the heel"
"grace, favor"
Similar sound: These names share phonetic patterns with Jayne — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Latin origins, giving them the same cultural heritage as Jayne.
Rhythm: Jayne is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.