Dominum

Dominum is the accusative singular form of the Latin noun dominus, meaning master or lord. In Latin grammar, domĭnum functions as the direct object of a verb, as in phrases where the master or lord is being seen, addressed, or spoken about. In religious texts, Dominum can appear with a capital D when referring to a specific Lord, such as Dominum nostrum in liturgical Latin, meaning “our Lord.”

The base noun dominus is part of a larger set of forms: nominative dominus, genitive domini, dative domino, accusative dominum, and ablative domino. The feminine counterpart is domina, meaning mistress or lady. Beyond dominus, the related neuter noun dominium (dominium, dominii) denotes ownership or sovereign domain, giving rise to modern terms such as dominion and domain.

In usage, dominium and dominus appear across classical, medieval, and ecclesiastical Latin. Domnum as a standalone lemma is not typically treated separately in dictionaries; it is understood as one inflected form of dominus. The form also appears in inscriptions and legal or ceremonial texts where the object of reverence, possession, or command is being stated.

Derivative terms and concepts associated with the root include dominus, dominium, domain, and dominion, which reflect historical notions of lordship, ownership, and sovereign territory. The Latin lineage of domĭnum thus informs several modern words that denote control, authority, or a defined geographical or conceptual area.