Artificial intelligent assistant

ed

ed, a. Obs. rare.
  Only in superl. edist or eddist.
  [Of uncertain origin; it has been identified with the OE. éad happy (cf. eadi, eadness), but the latter appears to be a spurious word evolved from corrupt readings. Perh. ed(d)ist may be a scribal error for oddist, which occurs elsewhere in the poem.]
  ? Distinguished in war.

c 1400 Destr. Troy 5324 Ercules, þat honerable, edist of my knightes. Ibid. 5950 Ector..eddist of knightes.

Oxford English Dictionary

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