Kaston sits next to 5 phonetic neighbors — Caston, Gaston, and Boston are the closest matches by sound. Most share Kaston's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the castle town"
"the ringed planet, sixth from the sun"
"settlement of the prince, princely estate"
"ancient, enduring"
"bear (totem name)"
"son of Dierk (patronymic)"
"darling, dear one"
"Yahweh has bestowed"
"elder tree island"
"subject, flock (of subjects)"
"to sail at a steady speed"
"edge of a shield"
"poet, deep one (via Devon)"
"bright new home"
"creative American construction"
"gentle, kind-hearted"
"messenger of God"
"gracious gift"
"holder of the heel"
"tournament fighter, gladiator"
Similar sound: These names share phonetic patterns with Kaston — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Kaston.
Rhythm: Kaston is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.