Artificial intelligent assistant

behovable

beˈhovable, a. Obs.
  [f. behove v. + -able.]
  Useful, profitable, advantageous; incumbent.

c 1460 J. Russell Bk. Nurture in Babees Bk. (1868) 172 Þerfore stuffe of household is behoveable. 1482 Monk of Evesham (Arb.) 49 Y toke hem, and to behouable vsus ful treuly y spende hem. 1553–87 Foxe A. & M. (1596) 1021/1 Gamaliel did see better what was behooueable. 1596 Bell Surv. Popery ii. ii. viii. 172 It was as well behoouable to haue the wiues confirmed, as the husbandes.

Oxford English Dictionary

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