Gargoyle

Linguistic and architectural history: the English term 'gargoyle' derives from Old French gargoule/gargouille ('conduit for waterflow'), itself built on an onomatopoeic garg- root linked to throat/gullet imagery and the gurgling of water; the word thus names the functional purpose of a waterspout as well as evoking a grotesque mouth. Architecturally, projecting water-spouts and ornamented drainage devices predate the medieval period — examples include lion-headed spouts in Ancient Egyptian and Greek temples — and the medieval gargoyle evolved from these utilitarian precedents combined with figurative ornament. Legendary/commemorative strand (Rouen): a local medieval legend, La Gargouille, tells of a dragon-like monster subdued by a saint whose head was mounted on cathedral walls as a prophylactic against evil spirits; that story has been associated in popular accounts with the name and symbolic function of gargoyles, but it is a distinct folkloric origin narrative rather than the linguistic or technical origin of the architectural device.

Typically an elongated fantastical animal or hybrid figure whose length projects water clear of a wall; many medieval examples are grotesque combinations of animals and human figures, chimeras, or humorous caricatures. Functional gargoyles are carved with a trough or channel in the back so rainwater collects and exits through an open mouth; non-functional ornamental figures of similar form are more properly called grotesques, chimeras, or bosses, though popular usage often calls all such figures 'gargoyles.' Notable examples include the medieval projecting spouts of Laon Cathedral (early 13th century) and the famous chimeras added to Notre-Dame de Paris in the 19th-century restoration.

As described in the sources, gargoyles are inanimate architectural elements whose primary 'ability' is practical: to convey rainwater from roofs and discharge it away from masonry to prevent erosion of mortar. Culturally they have been read as apotropaic motifs — figures said in popular belief to 'protect what they guard, such as a church, from any evil or harmful spirits' — but the sources present this protective role as a symbolic or commemorative meaning attached to sculptural imagery rather than as a documented autonomous supernatural power or agency.