catchword

The term 'catchword' is a transparent English compound formed from two native elements. The verb 'catch', with its core sense of seizing or capturing, is combined with 'word' to create a metaphorical meaning. Originally, in the 18th century, it was a printers' term for the first word of a page printed at the bottom of the preceding page to "catch" the typesetter's eye and ensure continuity. This literal sense of a word that catches attention logically evolved into its modern figurative meaning: a word or phrase that captures the essence of an idea and is used repeatedly to attract public notice, especially in politics or advertising. The etymology perfectly illustrates how a concrete, technical term can develop a broader, more abstract societal application.

Structure: catch + word - catch: From Middle English cacchen, from Anglo-Norman and Old Northern French cachier, meaning "to chase, capture". In this compound, it functions with the sense of "to seize or attract attention". - word: From Old English word, of Germanic origin, meaning "a single distinct meaningful element of speech or writing". It functions as the core noun being modified.