Artificial intelligent assistant

underpropper

underˈpropper
  [f. underprop v.]
  One who or that which supports or sustains. Also spec. (see supportasse).

1532 More Confut. Tindale Wks. 473/1 This vnderpropper is not very proper for to beare vp his bilding. 1583 B. Melbancke Philotimus K ij, The strongest vnderproppers of her princely state. 1655 Cromwell Let. to Goodson Oct. (Carlyle), That Roman Babylon, of which the Spaniard is the great underpropper. 1664 H. More Myst. Iniq. i. i. 1 For which reason they..style the chief Authour and under⁓propper thereof..by the name of Antichrist. 1740 Cibber Apol. (1756) I. 43, I had a third chance..of becoming an under-propper of the state.

Oxford English Dictionary

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