Artificial intelligent assistant

blithen

blithen, v.
  (ˈblaɪð(ə)n)
  [mod.f. blithe a. + -en2: cf. gladden.]
  trans. To make blithe.

1824 Galt Rothelan II. v. ix. 255 To blithen the morning with cheerful reveillies. 1830Lawrie T. iii. xv. (1849) 134 Glimpses of merriment..which blithen the fire-side.

Oxford English Dictionary

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