magnārĭus — Lewis & Short
magnārĭus, ii, m.magnus,
I of or belonging to what is great or in the gross (post-class.):
negotiator magnarius,a dealer in gross, wholesale dealer, App. M. 1, p. 104, 24:
PISTOR,Inscr. Orell. 4264; Inscr. Grut. 283, 1.