As Newman proved, a spark of inspiration can turn up in any meal or beverage.
She sort of sparked hope in him and I think he took that spark a little further in his head and turned it into a little fire.
Which just goes to show that certain words, many words, carry electric charges and spark immediate synaptic responses.
Old English spearca, from Proto-Germanic *spark- (cf. Middle Low German sparke, Middle Dutch spranke, not found in other Germanic languages). Electrical sense dates from 1748. Slang sense of "a gallant, a beau, a lover" (c.1600) is perhaps a figurative use, but also perhaps from cognate Old Norse sparkr "lively." Spark plug first recorded 1903 (sparking plug is from 1902); figurative sense of "one who initiates or is a driving force in some activity" is from 1941.
c.1300, from spark (n.). Slang meaning "stimulate, to trigger" first attested 1912. Related: Sparked; sparking.