I.v. a., to warm thoroughly (rare but class.).
(β).
Pass.: concălĕfīo , fĭĕri, factus sum: “vertat ova, uti aequabiliter concalefiant,” Varr. R. R. 3, 9, 11: “trabes concalefaciuntur,” are heated, Vitr. 4, 7 (cf. calefacientur, id. 5, 10): “(concursio corporum) concalefacta et spirabilis,” Cic. Tusc. 1, 18, 42 (but in Cic. Fragm. ap. Non. p. 92, 22, the read. is dub.).