jusjurandum

Latin

(Classical Latin) IPA^(key): /i̯uːs.i̯uːˈran.dum/, [i̯uːs̠i̯uːˈrän̪d̪ʊ̃ˑ]
(modern Italianate Ecclesiastical) IPA^(key): /jus.juˈran.dum/, [jusjuˈrän̪d̪um]

jūsjūrandum n (genitive jūrisjūrandī or jūsjūrandī); variously declined, third declension, second declension

In Classical Latin, both parts decline, but in Medieval Latin sometimes only the second part declines.

Third-declension noun (neuter, imparisyllabic non-i-stem) with a second-declension noun (neuter) or second-declension noun (neuter).

	singular	plural
nominative	jūsjūrandum	jūrajūranda jūsjūranda
genitive	jūrisjūrandī jūsjūrandī	jūrumjūrandōrum jūsjūrandōrum
dative	jūrījūrandō jūsjūrandō	jūribusjūrandīs jūsjūrandīs
accusative	jūsjūrandum	jūrajūranda jūsjūranda
ablative	jūrejūrandō jūsjūrandō	jūribusjūrandīs jūsjūrandīs
vocative	jūsjūrandum	jūrajūranda jūsjūranda

“jusjurandum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
jusjurandum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
“jusjurandum”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin
E. J. A. Seyferts auf Geschichte und Kritik gegründete lateinische Sprachlehre, zunächst bestimmt für allerley Lernende. Dritter Theil oder Zweyter Cursus, Brandenburg, 1800, page 33–34
Benjamin A. Gould, Adam's Latin Grammar, with some Improvements, Boston, 1831, page 57–58: "In double nouns, both nouns are declined when combined in the nominative; as, Respublica, a commonwealth, fem. [...] Jusjurandum, an oath, neut. [...]"
E. A. Andrews and S. Stoddard, A Grammar of the Latin Language; For the Use of Schools and Colleges, 6th edition, Boston, 1839, page 39: "Declension of Compound Nouns. [..] When a compound noun consists of two nominatives, both parts are declined; but when one part is a nominative, and the other an oblique case, the nominative only is declined. Of the former kind are respublĭca, a commonwealth, and jusjurandum, an oath; of the latter, mater-familias, a mistress of a family."