nixus

• gnīxus
• nīsus

• (Classical Latin) IPA^(key): [ˈniːk.sʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈnik.sus]

From nītor +‎ -tus (forming action nouns).

nīxus m (genitive nīxūs); fourth declension

1. pressure (downward push)
2. a striving, effort, exertion
3. (especially) travail, throes (in childbearing)

Fourth-declension noun.

Perfect active participle of nītor (“to rest upon; etc.”).

nīxus (feminine nīxa, neuter nīxum); first/second-declension participle

1. having rested upon, leaned on
2. having pressed forward, advanced
3. having mounted, climbed, ascended
4. having strained in giving birth
5. (figuratively) having struggled, endeavoured
6. (figuratively) having contended in argument, argued
7. (figuratively) having rested, relied, depended upon

First/second-declension adjective.

• “nixus¹”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “nixus²”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “nīxus¹”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• "nixus", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “nixus”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• nixus in Ramminger, Johann (16 July 2016 (last accessed)), Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700‎^[1], pre-publication website, 2005-2016