Artificial intelligent assistant

pranky

ˈpranky, a. rare.
  [f. prank n.2 + -y.]
  Given to or full of pranks.

a 1553 Udall Royster D. iii. iii. (Arb.) 47 So, that is some⁓what like, but prankie cote, nay whan, That is a lustie brute, handes vnder your side man. 1828 Blackw. Mag. XXIII. 10 The strangest and most curious pranky little beings that ever were born. 1865 Pall Mall G. 16 Sept. 6/1 Merely a demonstration of pranky lawlessness.

Oxford English Dictionary

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