from a presumed compound of σύν and the base of ἔργον; a co-laborer, i.e. coadjutor:--companion in labour, (fellow-)helper(-labourer, -worker), labourer together with, workfellow.
from ὑπό and τάσσω; to subordinate; reflexively, to obey:--be under obedience (obedient), put under, subdue unto, (be, make) subject (to, unto), be (put) in subjection (to, under), submit self unto.