complexului

Complexului is the genitive and dative singular form of the Romanian noun complex. The word complex refers to a cohesive group or system, such as a set of buildings or related elements, and it is used in both architectural and psychological senses. In Romanian, complex is a masculine noun of foreign origin, and its inflected forms follow the standard masculine pattern.

Declension details: singular forms are complexul for nominative and accusative, and complexului for genitive and dative. Plural forms are complexe for nominative and accusative, complexele for the definite plural, and complexelor for genitive and dative plural. The form complexului therefore appears in phrases indicating possession or indirect objects, for example as in fațadei complexului (the facade of the complex) or a contractului complexului (the complex’s contract), depending on the syntactic role.

Usage and nuance: complexul can denote a physical complex, such as a residential or commercial development, or a more abstract grouping in fields like psychology or urban planning. In psychology, phrases like complexul de inferioritate (the inferiority complex) are common, with complexului appearing when the noun is in the genitive or dative case in longer constructions.

Etymology: the term complex is a direct loan from English, integrated into Romanian with standard masculine noun inflection. Its Romanian forms coexist with the sense-based uses of the word, without altering core meanings across contexts.

See also: complex (the word), Romanian declension, gender and case in Romanian nouns, possessive constructions.