(spärk) noun
1. An incandescent particle thrown off from a red–hot or burning body or struck from a flint.
2. Any glistening or brilliant point or transient luminous particle.
3. Anything that kindles or animates.
4. Electr. a The luminous effect of a disruptive electric discharge, or the discharge itself. b A small transient arc or an incandescent particle thrown off from such an arc.
5. A small diamond, or bit of diamond used as in cutting glass.
6. A small trace or indication.
—v.i.
1. To give off sparks; sparkle; scintillate.
2. In an internal–combustion engine, to have the electric ignition operating.
—v.t.
3. To bring into action or being; activate or cause: The shooting sparked a revolution. [OE spearca]

(spärk) noun
1. A man fond of gallantry.
2. A lover; suitor; gallant.
—v.t. & v.i. To play the spark (to); woo; court. [Special use of SPARK¹]