H8563 תַּמְרוּר תַּמְרוּר (tamrûwr), Strong’s H8563: bitterness (plural as collective) KJV: [idiom] most bitter(-ly).. Occurs 3 times. Source: https://besorah.bible/word/H8563 — Besorah, the whole Bible in Hebrew, Greek and English. Texts and licences: https://besorah.bible/about/credits.html tamrûwr — bitterness (plural as collective) KJV: [idiom] most bitter(-ly). Derived from מָרַר mârar (https://besorah.bible/word/H4843) (to be) Occurs 3 times. Brown–Driver–Briggs - [תַּמְרוּר] n.m. bitterness Where it occurs - Jeremiah 6:26 (https://besorah.bible/tanakh/jeremiah/6?v=26) — Daughter of my people, clothe yourself with sackcloth, and wallow in ashes! Mourn, as for an only son, most bitter… - Jeremiah 31:15 (https://besorah.bible/tanakh/jeremiah/31?v=15) — The LORD says: “A voice is heard in Ramah, lamentation and bitter weeping, Rachel weeping for her children. She refuses… - Hosea 12:15 (https://besorah.bible/tanakh/hosea/12?v=15) — Ephraim has bitterly provoked anger. Therefore his blood will be left on him, and his Lord will repay his contempt.