Pax sits next to 3 phonetic neighbors — Max, Jax, and Rex are the closest matches by sound. Most share Pax's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"peace"
"trustworthy one"
"follower of Calvin (in Protestant tradition)"
"dove"
"follower of Christ"
"rapid water"
"dark red, crimson"
"tempest, violent storm"
"king, lord of the people"
"meadow of the gods"
"kingly, held by the heel (supplanter)"
"the foremost one"
"famous warrior"
"oak meadow, clearing in the oaks"
"one who serves"
"chief, brave man"
"church official, ecclesiastical law"
"dear, beloved"
"rhythm, beat, flow"
"white, fair-complexioned"
"son of Madoc, fortunate"
Similar sound: These names share phonetic patterns with Pax — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Pax.
Rhythm: Pax is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.