gruellous--prophetes.ai

gruellous, a. rare^—1.
  (ˈgruːələs)
  [f. gruel n. + -ous.]
  Resembling gruel; gruelly.

1862 ‘C. Bede’ College Life 74 Mr. Percival Wylde was lying back upon his pillows, apparently engaged in sipping the gruellous compound.

Oxford English Dictionary