genium
genium is a Latin form of genius, meaning “guardian spirit, genius; inclination”. It is the accusative singular masculine noun.
Found 39 times in the Latin texts on Socratos.
Where it is used
Vergil, Aeneid 5.95: incertus, geniumne loci famulumne parentis
Ovid, Fasti 5.145: mille Lares Geniumque ducis, qui tradidit illos,
Plautus, Aulularia 4.9.725: animúmque meum geniúmque meum;nunc eó alii laetíficantur
All forms of genius (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.