doctrinal

The word 'doctrinal' originates from the Latin noun doctrina, meaning "teaching, instruction, or body of knowledge," which itself derives from doctor (teacher), from docere (to teach). The suffix -alis was added to form the Late Latin adjective doctrinalis, signifying "pertaining to teaching." Entering English via Old French, the term evolved from its general educational sense to specifically denote matters pertaining to a formal system of principles or beliefs, especially in religious, political, or philosophical contexts. Thus, the literal "of teaching" transformed into the modern abstract meaning of "relating to an authoritative body of dogma or theory."

Structure: doctrin (doctrine) + al (adjective suffix) - doctrin: From Latin doctrina (teaching, learning, body of knowledge). Functional role: Core noun root. - al: From Latin -alis (adjective-forming suffix). Functional role: Derives an adjective meaning "of or pertaining to" from a noun.