Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Mara
Usage: A woman living before Israel's Monarchy, first mentioned at Rut.1.2; married to Elimelech (H0458); mother of: Mahlon (H4248) and Chilion (H3630); also called Mara at Rut.1.20; Another name of no.o.mi (נׇעֳמִי "Naomi" H5281) § Mara = "bitterness" a name that Naomi called herself due to her calamities