Petar sits next to 3 phonetic neighbors — Peter, Pieter, and Piotr are the closest matches by sound. Most share Petar's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rock, stone"
"son of Aodh (fire, sun)"
"action, deed, fate"
"son of Copen (geographic surname)"
"father of many nations"
"dark, full; complete darkness"
"order, decree"
"phonetic Cuban variant of Joel/Yoel"
"brave, valiant"
"Sunday child"
"brings rain; water-giver"
"worthy of being told in stories"
"serious, earnest"
"ancient one"
"remembered by the Lord"
"thorny shrub, wild rose"
"most mature, most rational"
"Shade or darkness cast by an object blocking light"
"forest ranger, game warden"
"little bear, dear bear"
"modern compound: Mc (son of) + Aiden (little fire)"
Similar sound: These names share phonetic patterns with Petar — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Petar.
Rhythm: Petar is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.