Artificial intelligent assistant

tuss

tuss dial. or Obs.
  [Northern var. of tusk n.1]
  Arch. One of a series of stones or bricks forming a projecting course for the attachment of an additional structure. Cf. tush n.1 3 and toothing vbl. n. 2 b.

1412 in Raine Catterick Church, Yorks. (1834) 9 And the forsaide Richarde sall putte oute tusses for the makyng of a Reuestery. Ibid. 10 And also forsaide Richarde salle schote out tusses in the west ende for makyng of a stepill. 1834 Raine note, This..term..implies the projecting stones left in..masonry..by which a contemplated building might in due time be attached... Such..stones..are still in the north of England not unfrequently called tusses, a corruption of tusks.

Oxford English Dictionary

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