H4843
מרר
מָרַר ‎ mârar
maw-rar‘
A primitive root; properly to trickle (see 4752 ; but used only as a denominative from 4751 to be (causatively make) bitter (literally or figuratively): - (be, be in, deal, have, make) bitter (-ly, -ness), be moved with choler, (be, have sorely, it) grieved (-eth), provoke, vex.