pūr פּוּר ‘Purim’ (Hebrew)

Etymology^?: from pūr פּוּר ‘to break’
Roots: פור

pūr n, m
Pur or Purim = "lot" or "piece"
1) lot
 1a) a special feast among the post-exilic Jews, to celebrate their deliverance from Haman's destruction through queen Esther's heroic actions