alphitomancy
\ al-FIT-uh-man-see \, noun;
1.the use of barley meal as a means of divination.
Quotes:
…for surely it is a glaring contradiction to admit that alphitomancy can really reveal futurity, and yet to call it a mere vain pretence.
-- E. Johnson, Letter to the Editor, The Metropolitan Magazine: Volume XIV , September to December, 1835
By alphitomancy described by Theocritus in his Pharmaceutria , and by aleuromancy, mixing wheat with flour.
-- François Rabelais (1494–1553), translated by John Michael Cohen, "Gargantua and His Son Pantagruel," 1955
Origin:
Alphitomancy comes from the Greek word álphiton meaning "barley." The suffix -mancy comes from the Greek term manteía meaning "divination." Alphitomancy entered English in the mid-1600s.
Dictionary.com