crustum

Latin

From the same root as crusta. Derived by De Vaan from Proto-Indo-European *krustós.^[1]

(Classical Latin) IPA^(key): [ˈkrʊs.tũː]
(modern Italianate Ecclesiastical) IPA^(key): [ˈkrus.t̪um]
Bennett 1907 marks the vowel in the first syllable as long, saying it occurs with an apex in CIL i. 1199.^[2]^[3]^[4] However, Romance descendants of crusta and crustulum point to a short vowel.

crustum n (genitive crustī); second declension

Second-declension noun (neuter).

^ De Vaan, Michiel (2008) “crusta”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 147
^ Charles E. Bennett (1907) “Hidden Quantity”, in The Latin Language – a historical outline of its sounds, inflections, and syntax, Boston: Allyn and Bacon, page 57
^ Mommsen, Theodor and Henzen, Wilhelm, editors (1863), Inscriptiones Latinae antiquissimae ad C. Caesaris mortem (Corpus Inscriptionum Latinarum; I), page 243
^ “Iscrizione di L. Papius Pollio”, in EPIGRAPHIC DATABASE ROMA‎^[1], 2015

“crustum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“crustum”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
"crustum", 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)
crustum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
De Vaan, Michiel (2008) “crusta”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 147