Obs. rare. Also 7–8 excalefaction. [ad. L. excalfactiōn-em, n. of action f. excalfacĕre to warm, heat, f. ex- (see EX- pref.1) + calefacĕre to heat.] The action or fact of warming; calefaction.
1607. Topsell, Four-f. Beasts (1658), 38. Apply it to a moist body lacking refrigeration, or to a cold body wanting excalfaction.
1656. Blount, Glossogr., Excalfaction.
1721–1800. Bailey, Excalefaction. Ibid. (1730–6), (folio), Excalfaction.
So † Excalfactive a., tending to warm; warming. † Excalfactory a. Also 8 excalef-. = prec.
1611. Cotgr., Excalfactif, excalfactiue; heating, chafing, warming.
1601. Holland, Pliny (1634), II. 303. The very filth from the wals of their … places of wrestling … (say they) [Greeks] hath a speciall excalfactory vertue.
1730–6. Bailey (folio), Excalfactory.
1775. Ash, Excalefactory.
