The word 'urbanist' is a modern formation built upon the classical Latin foundation for "city." Its core, urbanus, originates from urbs, the Latin word for a city, particularly Rome. The suffix -ist, with its Greek lineage via Latin, is a prolific agent-noun ending used to denote a specialist or adherent of a practice. Therefore, an urbanist is literally "one concerned with the city," a meaning that evolved from the concrete ancient concept of a city (urbs) to the modern, abstract professional and theoretical focus on urban systems, design, and policy.

Structure: urban (city) + ist (person who practices) - urban: From Latin urbanus ("of or pertaining to a city"), from urbs ("city"). Functions as the core adjective root. - ist: A suffix from Greek -istes, via Latin -ista, denoting a person who practices or is concerned with something. Functions as an agent noun suffix.