popular

The word "popular" entered English in the late 15th century via Anglo-French populer and Old French populeir, both meaning "belonging to the people." These derive directly from the Latin adjective popularis, which itself is formed from populus (the people, a nation) and the suffix -aris. The Latin populus is of uncertain origin, though it may be connected to the Etruscan word for "army" or to the Proto-Indo-European root pelh₁- meaning "to fill," suggesting the concept of a multitude. The semantic journey is direct: from "pertaining to the common people," the meaning evolved to describe what is prevalent among or favored by the populace, leading to its modern senses of "widely liked" and "common."

Structure: popul (people) + ar (adjective suffix) - popul: From Latin populus (the people, a nation, multitude). Serves as the root carrying the core meaning of "people." - ar: A variant of the Latin adjectival suffix -aris, used to form adjectives meaning "of or pertaining to" the root.