Producing small fiery particles or electrical discharges; igniting or initiating something suddenly. Can also mean courting or wooing romantically in dialectal usage.
From Old English spearca meaning 'glowing particle,' related to Old Norse sparkr. The verb form developed in Middle English, with the romantic meaning emerging in the 18th century American dialect, where 'sparking' meant courtship, likely from the metaphor of igniting passion.
The dual meaning of sparking - both literal fire and romantic fire - shows how English speakers intuitively understand the metaphorical connection between physical and emotional ignition. In Appalachian dialect, 'sparking' someone was serious courtship business, and the phrase 'sparking bench' described where young couples would sit together under parental supervision.
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