Royal sits next to 3 phonetic neighbors — Royale, Reyal, and Loyalty are the closest matches by sound. Most share Royal's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the king, regal"
"gentle, delicate"
"beloved, dear one"
"pearl"
"to carry, to endure"
"like sunshine, radiant"
"bear-strong, hardy bear"
"illustrious, brilliant"
"gift of the goddess"
"God has answered"
"dweller by the lane"
"follower of Christ"
"boomerang (curved throwing stick)"
"dear one, beloved"
"little stream, flowing water"
"moonlight, born of the moon"
"well-spoken of"
"diamond in the sky, place of rest"
"steward, dispenser of provisions"
"noble, of noble birth"
"place of linden trees"
Similar sound: These names share phonetic patterns with Royal — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French/Latin origins, giving them the same cultural heritage as Royal.
Rhythm: Royal is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.