exactum
Exactum is a Latin term formed as the neuter singular of the adjective exactus (and its variant exac tus), meaning "the exact," "the precise," or "the completed." In Latin grammar, adjectives agree with the nouns they modify, so exactum would modify a neuter noun and can also function as a substantive when the noun is understood from context. The form derives from the broader family of words linked to exigo/exigere, which carry senses related to bringing to completion or demanding; in English, the cognate word exact retains the sense of precision and accuracy.
In classical Latin, exactus and its feminine exacta are more commonly encountered; exactum appears mainly in
In modern usage, Exactum is not a standard or widely recognized term outside discussions of Latin grammar.