smasher

the word 'smasher' is a transparent english compound built from the verb 'smash' and the agentive suffix '-er'. the verb 'smash' itself is of comparatively recent origin, first appearing in the 18th century, and is believed to be an onomatopoeic formation, imitating the sound of something breaking violently or with great force. the suffix '-er' has a long lineage, descending from the old english '-ere', which was used to form nouns denoting a person or thing performing an action. therefore, a 'smasher' literally means 'one who or that which smashes'. its informal sense, meaning something extraordinarily good, developed through the metaphorical extension of the idea of forceful, impressive impact.

Structure: smash (to break violently) + er (agent suffix) smash (of imitative origin, likely from the sound of breaking) + er (from old english -ere, agent noun suffix, of germanic origin).