Artificial intelligent assistant

grolling

grolling, vbl. n. Obs. rare—1.
  [Echoic; cf. groule, gurl.]
  ? Rumbling.

1398 Trevisa Barth. de P.R. vi. xxi, Yf þe mete be to moche it..streccheþ þe stomak and bloweþ it and bredeþ grollynge and gnawynge in þe wombe.

Oxford English Dictionary

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