Layman
Layman , noun
[Lay, adj. + man.]
1.
One of the people, in distinction from the clergy; one of the laity; sometimes, a man not belonging to some particular profession, in distinction from those who do.
Being a layman, I ought not to have concerned myself with speculations which belong to the profession.
2.
A lay figure. See under Lay, n. (above). — Dryden