mar מַר ‘bitter’ (Hebrew)

Etymology^?: from mārar מָרַר ‘to provoke’
Roots: מרר

mar adj, m
adj
1) bitter, bitterness
 1a) of water or food
 1b) of harlot's end, end of wickedness, cry (fig.)
 1c) of pain (subst)
adv
2) bitterly