Easton's Bible Dictionary: M. G. Easton, M.A., D.D.
A labourer employed on hire for a limited time (Job 7:1, 14:6; Mk. 1:20). His wages were paid as soon as his work was over (Lev. 19:13). In the time of our Lord a day's wage was a "penny" (q.v.) i.e., a Roman denarius (Mt. 20:1-14).