Caine sits next to 4 phonetic neighbors — Kane, Cain, and Lane are the closest matches by sound. Most share Caine's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"acquired, possessed"
"great, supreme, exalted"
"liberator of men; freer of man"
"oak tree"
"bright, lively (Jay element)"
"son of Madoc, fortunate"
"from the rust-colored estate"
"celestial body"
"whole, healthy"
"son of the famous ruler"
"variant of Jason (healer) or Jacob (supplanter)"
"crooked river"
"the winter season, wet season"
"graceful, elegant"
"old friend"
"gift of God"
"older, senior in wisdom"
"fiery one"
"Lord, have mercy (liturgical)"
"settlement by the bridge"
"counsel, decision"
Similar sound: These names share phonetic patterns with Caine — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Caine.
Rhythm: Caine is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.