Prime of Miss Jean Brodie By muriel spark “Give me a girl at an impressionable age, and she is mine for life.”
The Girls of Slender Means by muriel spark for its ruthlessness.
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.