Mara

Easton's Bible Dictionary (1897)

Bitter; sad, a symbolical name which Naomi gave to herself because of her misfortunes (Ruth 1:20).

Smith's Bible Dictionary (1863)

(sad, bitter), the name which Naomi adopted in the exclamation forced from her by the recognition of her fellow citizens at Bethlehem. (Ruth 1:20)

Hitchcock's Bible Names Dictionary (1869)

Marah, bitter; bitterness

Public domain dictionaries.