מַר מָרָה

mar (mar) (or (feminine) marah {maw-raw'}) adj.
1. (literally or figuratively) bitter
2. (as noun) bitterness
3. (adverbially) bitterly
[from H4843]
KJV: + angry, bitter(-ly, -ness), chafed, discontented, X great, heavy. 
Root(s): H4843

• Part of speech: adjective
• Occurrences: 41

• מרר — H4843

• Genesis 27:34

From Strong's Hebrew and Chaldee Dictionary (1890), which is public domain. This bundle carries the words that spell biblical names and the roots they are built from; the full lexicon of 8,674 entries ships as a bulk table.