Strong's H4785 · Hebrew

Marah

maw-raw'

the same as 4751 feminine; bitter; Marah, a place in the Desert

Scholarly Lexicons

Brown-Driver-Briggs (BDB)

 H4785 מָרָה of bitter spring in Sinaitic penins.  

Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain