Strong’s Hebrew
H4844 — mror
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
מְרֹר
mror — pronounced mer-ore
or mrowr {mer-ore'}; from 4843; a bitter herb:-- bitter(-ness). see H04843
3 occurrences in the KJV.
Exodus 12:8
And they shall eat the flesh in that night, roast with fire, and unleavened bread; and with bitter herbs they shall eat it.
Numbers 9:11
The fourteenth day of the second month at even they shall keep it, and eat it with unleavened bread and bitter herbs.
Lamentations 3:15
He hath filled me with bitterness, he hath made me drunken with wormwood.