show-off

The compound noun "show-off" is a transparent and relatively modern English formation, emerging in the late 18th century. It is a straightforward combination of the verb "show," with its ancient Germanic sense of making something visible or apparent, and the particle "off," which here functions as an intensifier suggesting a conspicuous or ostentatious display. The logic is direct: to "show off" is to actively display oneself or one's attributes in a manner that separates or distances itself from modesty, aiming to attract attention. The term captures the act of performing for an audience with the intent of inspiring admiration or envy, a social behavior that the language neatly encapsulates by linking the fundamental concept of visibility ("show") with the notion of emphatic, outward projection ("off").

Structure: show + off - show: From Old English scēawian (to look at, see, gaze, behold, observe; inspect, examine; appear, be seen). A Germanic verb root meaning to cause or allow to be seen. - off: From Old English of, a preposition/adverb indicating separation, removal, or departure from a place or state.