Marcell sits next to 4 phonetic neighbors — Marcel, Marcello, and Marshall are the closest matches by sound. Most share Marcell's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"little warrior, of Mars"
"hillside, river bank"
"God has remembered"
"one who judges, discerning leader"
"spear warrior, ancient one"
"handsome, beautiful"
"prince, king"
"joyful outcry"
"servant, attendant"
"one who works with ropes and rigging"
"brave"
"winner, victorious fighter"
"wise army, counsel warrior"
"enduring, steadfast (via Dante)"
"God is gracious"
"of January, born in January"
"Geirrapos island, grassy island"
"defender (Greek mythological meaning)"
"hunter, one who hunts or pursues"
"son of William"
"beloved of God, beloved of Yahweh"
Similar sound: These names share phonetic patterns with Marcell — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Marcell.
Rhythm: Marcell is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.