English
masser
From mass + -er.
A compound of mass + -er
Ancient Greek μᾶζα ‘barley-cake, lump of dough’
Latin massa ‘lump, dough’
Anglo-Norman masse
Middle English masse ‘lump, quantity of matter’
English mass
Today it means
noun A priest who celebrates Mass
Language periods are conventional ranges, not dates for this word.
Etymograph / masser