The word 'Sudanese' is a demonym formed by combining the geographical name 'Sudan' with the productive suffix '-ese'. 'Sudan' itself originates from the Arabic term for a vast region of Africa, "bilād as-sūdān", which translates to "the land of the black peoples". The suffix '-ese' entered English through Romance languages like French and Italian, tracing back to the Latin adjectival suffix '-ensis', used to indicate origin or belonging. Thus, the term 'Sudanese' logically constructs its modern meaning—"of or from Sudan"—by directly attaching this established suffix for nationality to the Anglicized name of the country.

Structure: sudan (country name) + ese (adjective/noun suffix) - sudan: A toponym, the name of the country in Northeast Africa, derived from the Arabic phrase "bilād as-sūdān" meaning "land of the blacks". - ese: A suffix of Latin origin via French and Italian, forming adjectives meaning "belonging to" or "originating from" a place, and nouns denoting an inhabitant or language.