alumen

Literally, “bitter (salt)”, from Proto-Indo-European *h₂elut- +‎ -men.^[1] See also Old English ealu (“ale, beer”) and Ancient Greek ἀλύδοιμος (alúdoimos, “bitter”).

• (Classical Latin) IPA^(key): [aˈɫuː.mɛn]
• (modern Italianate Ecclesiastical) IPA^(key): [aˈluː.men]

alūmen n (genitive alūminis); third declension

1. alum

Third-declension noun (neuter, imparisyllabic non-i-stem).

• “alumen”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• "alumen", 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)
• “alumen”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.