sparkle (v.)

c. 1200, "to emit sparks," from spark (n.). Meaning "to affect by an electrical spark" is from 1889. Figurative meaning "stimulate, to trigger" first attested 1912. Meaning "to play the gallant, to court" is from the 17c. secondary sense of the noun. Related: Sparked; sparking.

early 13c., present-participle adjective from sparkle (v.). Of eyes and wines from early 15c.; of conversation from 1640s. Related: Sparklingly.