Artificial intelligent assistant

extra-lath

extra-ˈlath, v. Obs. rare.
  [f. extra a. + lath n.]
  trans. To furnish with additional laths. Hence extra-ˈlathing vbl. n.

1778 Mahon in Phil. Trans. LXVIII. 893 The underside of the stair-case was extra-lathed. Ibid. 890 The method of extra-lathing may be applied to cieling joists.

Oxford English Dictionary

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