Donovan sits next to 4 phonetic neighbors — Sullivan, Callahan, and Brennan are the closest matches by sound. Most share Donovan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"dark warrior"
"noble and ready"
"trustworthy, loyal"
"free man"
"lotus flower"
"battle"
"son of the king"
"to rejoice, joyful"
"lucky, perfect"
"descendant of Ceallachán"
"powerful leader of the folk"
"arrow maker"
"title of honor, great one"
"valiant, brave"
"shelter, dwelling"
"brave warrior (later folk etymology)"
"youthful, young one"
"peace, submission to God"
"rye-field dweller"
"leatherworker, craftsman"
Similar sound: These names share phonetic patterns with Donovan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Donovan.
Rhythm: Donovan is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.