Artificial intelligent assistant

ragalet

ˈragalet rare.
  [Obscurely related to raggle n.1; cf. raglet.]
  = raggle n.1

1833 Loudon Encycl. Archit. §940 Ragalets (grooves), 2 inches deep into the walls, are to be made under these stones, to receive the ends of the slates. 1887 Dict. Archit., Ragalet, the Scotch term for a groove.

Oxford English Dictionary

yu7NTAkq2jTfdvEzudIdQgChiKuccveC df69c27a4fc1866be5dd5dfba4c31be5