"Variant of Marcellus"
The name Marcelus is commonly a male name from the "Latin" origin.
Marcelus is a variant spelling of Marcellus, the Latin cognomen carried by a branch of the Roman Claudii and a diminutive of Marcus. The form here drops one of the two l's of the Latin and English spelling. Related forms in other languages include Marcel, Marcello and Marcelo.
Marcellus means "Warrior, Warlike, Of Mars.".
The pronunciation of Marcelus is mar-SEL-us.
