Fomentum, huius fomenti, n. g. Colum. Any thing laide to the bodie plaisterwise to mitigate griefe or paine: fomentation.Fomenta calida, sicca, lenta, valida. Celius. Fomentations, hoce, &c.Frigidis & humidis fomentis fouere. Cels. Fomentum, per trauslationem.Any thing that asswageth or mitigateth forrow or heauinesse.Cicer. Hæc sunt solatia, hæc fomenta summorum dolorum. These be the mitigations of, &c.Fortitudinis fomentis dolor mitigari solet.Cic.Frigida curarum fomenta. Horat. Small asswagings of forrowe being of little or no force: colde comfortes of heauinesse.Ingrata fomenta, vulnus nil malum alleuantia. Hor. Parare fomenta. Hor. Præmollire asperum fomentis. Quin. With the mitigation to quallifie, &c. Fomentum.A nourishing of naturall heate.
Lewis and Short: Latin dictionary
fōmento, āre, v. a. [fomentum], to foment (post-class.): caput, Cael. Aur. Acut. 1, 9; Veg. Vet. 2, 8.