Artificial intelligent assistant

syntaxical

syntaxical, a. rare.
  (sɪnˈtæksɪkəl)
  [f. syntax + -ical. Cf. F. syntaxique.]
  = syntactical.

1586 A. Day Engl. Secretorie ii. (1625) 81 Schemes Syntaxicall, are Eclipsis... Aposiopesis..Zeugma..Syllepsis..Prolepsis [etc.]. 1826 Syd. Smith Hamilton's Meth. Teach. Lang. Wks. 1839 II. 325 The case of the substantive, and the syntaxical arrangement in which it is to be placed.

Oxford English Dictionary

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