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"
"abundance, growth, increase"
"lord of poets; master of poetry"
"bird catcher, fowl hunter"
"lover of his father, one devoted to his father"
"bright north"
"benevolence, humaneness"
"noble ruler"
"possibly from Celtic 'avon' (river)"
"Unique, incomparable, without a second; non-dual"
"bright settlement"
"divine gift (blended)"
"he will increase, God will increase"
"son of little fire"
"he whose aims are fulfilled"
"date palm, palm tree"
"Little red one"
"distinctive creative formation"
"short form of Maverick, from Samuel Maverick's unbranded cattle"
"God has remembered"
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.