"a long, tedious scolding," 1680s, a jocular formation from Job, the patriarch, with a Latinate noun ending, "in allusion to the rebukes he received from his 'comforters'" [Century Dictionary]. A verb jobe is attested from 1660s.
jo
Joachim
Joan
Job
job
Jobation
jobbard
jobber
jobless
Jocelin
Jocelyn
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}