Artificial intelligent assistant

sorous

sorous, a. Obs. rare.
  Also 4 sorus.
  [f. sore a.1 + -ous.]
  a. Sorrowful, sad. b. Grievous, distressing.

a 1300 Cursor M. 16762 + 105 Al creatures for his ded made doil & pite, And þou þat he deed fore cannot sorus be. 1502 Arnolde Chron. (1811) 129 The most greuous sorous losses, imprisonment, and troubles.

Oxford English Dictionary

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