The word 'touristy' is a modern English formation, built upon the noun 'tourist', which itself emerged in the late 18th century from the verb 'tour' (meaning 'to make a circuitous journey') and the agent suffix '-ist'. The verb 'tour' entered English from the French 'tourner' (to turn), which traces back to the Latin 'tornare' (to turn on a lathe), ultimately from the Greek 'tornos' (lathe, circle). The adjectival suffix '-y' (from Old English '-ig') is appended to create a descriptive term. Thus, the literal construction 'characterized by tourists' evolved into its contemporary, often mildly pejorative, meaning describing places overly commercialized for or frequented by tourists, losing a sense of original authenticity.

Structure: tourist (one who tours) + y (adjective-forming suffix) - tourist: A morpheme of English origin, derived from the noun 'tour' with the agent suffix '-ist', meaning 'one who makes a tour'. Its functional role is as the base noun. - y: A morpheme of Old English origin, a productive suffix used to form adjectives meaning 'characterized by; full of; having the quality of'.