Peter sits next to 4 phonetic neighbors — Pieter, Pedro, and Petar are the closest matches by sound. Most share Peter's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rock, stone"
"he gave"
"spotted stone"
"fortified hill"
"From Old French 'macon' meaning one who works with stone; originall..."
"thankful one"
"heart, mind, spirit"
"Yahweh has been gracious"
"priceless one, of inestimable worth"
"master, conqueror"
"round hill"
"one who finishes cloth"
"little fire"
"Lord, have mercy (liturgical)"
"salvation of God, the Lord saves"
"barrel maker"
"to tame, to subdue"
"whole, universal power"
"may God strengthen"
"hunter"
Similar sound: These names share phonetic patterns with Peter — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Peter.
Rhythm: Peter is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.