Artificial intelligent assistant

intercale

intercale, v. Obs.
  Also 7 -call.
  [ad. L. intercalāre or F. intercaler.]
  = intercalate v.

1613 Purchas Pilgrimage ii. iv. 102 [They] were constrained everie second or third yeare to intercale, or adde, as in Leape-yeare one moneth of 22 dayes. 1728 Newton Chronol. Amended i. 76 The Greeks..varied the manner of intercaling the three months in the Octaeteris. 1826 J. R. Best Four Years France 320 They intercale, after the wheat..a crop of haricots or French beans.

Oxford English Dictionary

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