מַר (mar) is
a Hebrew adjective
meaning bitter. It appears
39 times
in 18 books of the Hebrew Bible
(Strong's H4751).
Same Hebrew root (TWOT 1248a)
Range of meaning (TWOT 1248a)bitter, bitterness; bitterly; angry, chafed, discontented, heavy
Full entry: Brown-Driver-Briggs and Strong's
מַרadjective: bitter, bitterness
and substantive bitter, bitterness
Strong's H4751מַר: bitter (literally or figuratively); also (as noun) bitterness, or (adverbially) bitterly KJV:angry, bitter(-ly, -ness), chafed, discontented, × great, heavy.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.
Root family 1248: מָרַרmārar — be bitter; make bitter, shew bitterness; be, make; bitterly, bitterness, be moved with choler, grieved, provoke, vex