Artificial intelligent assistant

tessella

tessella
  (tɛˈsɛlə)
  Pl. ; rarely -as. Also 8 -ela.
  [L., dim. of tessera.]
  A small tessera.

1693 tr. Blancard's Phys. Dict. (ed. 2), Tessellæ, the same with Rotulæ or Tabellæ. 1727–41 [see tessellated 1]. 1753 Chambers Cycl. Supp., Tesselæ, a word used in pharmacy to express lozenges cut into regular figures. 1885 Athenæum 29 Aug. 278/3 No endeavour is made to fasten loose tessellæ into their sockets.

Oxford English Dictionary

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