Bolt sits next to 4 phonetic neighbors — Bode, Balt, and Cole are the closest matches by sound. Most share Bolt's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sudden dash or rush"
"from the white meadow"
"fat tail, referring to a grouping of stars"
"desired, longed for"
"brilliantly renowned"
"frozen water, crystalline coolness"
"of Jove (Jupiter), cheerful and good-humored"
"One who helps or assists"
"highest point, peak, summit"
"valley of pigs"
"God has grasped"
Similar sound: These names share phonetic patterns with Bolt — 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 Bolt.
Rhythm: Bolt is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.