fermentum

From Proto-Italic *fermentom, equivalent to ferveō +‎ -mentum, ultimately from Proto-Indo-European *bʰerw- (“to be hot, boil”). Related to dēfrutum.

fermentum n (genitive fermentī); second declension

1. fermentation, leavening
2. yeast, ferment
3. anger, passion

Second-declension noun (neuter).

• fermentō

• “fermentum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “fermentum”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• "fermentum", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• fermentum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• Walther von Wartburg (1928–2002) “fermentum”, in Französisches Etymologisches Wörterbuch, volume 3: D–F, page 467