Frederic sits next to 4 phonetic neighbors — Frederick, Friedrich, and Fredrick are the closest matches by sound. Most share Frederic's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"peaceful ruler, peaceful power"
"hill, headland, enclosure"
"divine peace, God's peace"
"adult male deer, stag"
"little slender one"
"visible mass of water droplets in sky"
"son of an earl"
"exalted brother, my brother is high"
"modern variant of Aeson (healer)"
"hollow"
"God is gracious"
"companion, friend"
"eligible, worthy of choice"
"elm grove"
"lion"
"highest point in the sky, directly overhead"
"place name: town in Pembrokeshire, Wales"
"according to hope, fortunate"
"homestead by the stream"
"crowned one"
"church"
Similar sound: These names share phonetic patterns with Frederic — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Germanic origins, giving them the same cultural heritage as Frederic.
Rhythm: Frederic is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.