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"
"reborn clearing"
"noble, gracious"
"linden tree valley"
"sacred river"
"from Rome, Roman"
"little ruler, little king"
"flowing water, river"
"the victorious (if from Cairo)"
"thorny tree, point"
"orange tree, orange blossom"
"golden princess, golden sovereign"
"lake, pool"
"earth, land, soil"
"beautiful eyes"
"of the sun, sunlit"
"slender and fair"
"handsome one from the meadow"
"invented name, meaning given by parents"
"young warrior"
"of noble kind"
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.