Percalefacio, & percalefio: vnde percalefactus, particip. Luer. To make through warme.
Lewis and Short: Latin dictionary
per -călĕfăcĭo, fēci, factum (also contr. percalfactum), 3, v. a.—Pass.: per-călĕfīo, factus, fieri, to make very warm, to heat thoroughly (mostly ante- and postclass.): omnia motu Percalefacta, Lucr. 6, 178: glebae a sole percalefactae, Varr. R. R. 1, 27: multo igni percalfacto cubiculo, Val. Max. 9, 12, 4: percalefieri cogit aquam,