Artificial intelligent assistant

feckful

feckful, a.
  (ˈfɛkfʊl)
  Also 7 fectful.
  [f. feck n.1 + -ful.]
  Efficient, vigorous, powerful.

1596 Dalrymple tr. Leslie's Hist. Scot. (1885) 108 Gif he be feckful, and haue grace to correct maneris in wicked persones. 1606 tr. Rollock's Lect. 2 Thess. iv. ii. 49 Wher boldnes in preaching the Gospell is, there is effectualnes in it, & the man who hes this boldnes, is a fectfull man. 1678 R. MacWard Let. in Scots Worthies (1826) 429 He was the most faithful, feckful compassionate and indefatigable elder. 1721 Ramsay To Will. Starrat 27 Feckfu folks can front the bauldest wind. 1722 W. Hamilton Life Wallace iii 28 Great room he made..Till mony a feckful Chiel that Day was slain. 1811 Willan W. Riding Gloss., Feckful, strong and brawny.

  Hence ˈfeckfully adv.

1723 M. Ward Contendings 153 That great man of God, who hath so faithfully, so fectfully, and so zealously served his Generation.

Oxford English Dictionary

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