Meaning

noun a momentary flash of light

noun merriment expressed by a brightness or gleam or animation of countenance

noun electrical conduction through a gas in an applied electric field

originEtymology tree Proto-West Germanic *sparkō Old English spearca Middle English sparke English spark From Middle English sparke, sperke, from Old English spearca, from Proto-West Germanic *sparkō (compare Saterland Frisian Spoorke, West Frisian spark, Dutch spark, German Low German Sparke, German Sparke), perhaps from Proto-Germanic *sparkaz (“lively, energetic”), from Proto-Indo-European *sperg-…

Etymology from Wiktionary, CC BY-SA 3.0