Artificial intelligent assistant

semi-soun

† semi-soun Obs.
  [f. semi- 2 + soun sound. Cf. late L. sēmisonus.]
  A slight or gentle sound.

a 1386 Chaucer Miller's T. 511 And softe he knokketh with a semy soun [MS. Lansd. seme sowne].

Oxford English Dictionary

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