spark

• n. 火花；活力；閃光
• vt.発進する；鼓舞する；提案する
• vi.閃く；火花を散らす；口説く
• n.（火花）人名；（露）火花

古英語のsperaca, spark, sparkから、原ゲルマン語*spark, sparkから、PIE*sper, sow, sprinkle, splashから、語源的にはsprinkle, sparse, spermと同じ。

spark (n.)

Old English spearca "glowing or fiery particle thrown off," from Proto-Germanic *spark- (cognates: Middle Low German sparke, Middle Dutch spranke, not found in other Germanic languages). Electrical sense dates from 1748. Old French esparque is from Germanic.

Slang sense of "a gallant, a showy beau, a roisterer" (c. 1600) is perhaps a figurative use, but also perhaps from cognate Old Norse sparkr "lively." Spark plug first recorded 1902 (sparking plug is from 1899); figurative sense of "one who initiates or is a driving force in some activity" is from 1941.

spark (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.

1. He passed an electric spark through a mixture of gases.

彼は電気火花を混合ガスの塊に通した。

2.Some bright spark turned the heating off last night！

頭が良すぎる男が昨夜暖房を切った。

3.His music lacked that vital spark of imagination.

彼の音楽には非常に重要な霊感が欠けている。

4.A mischievous spark glinted in his eyes.

彼の目には腕白な表情が浮かんでいた。

5.Even Oliver felt a tiny spark of excitement.

オリバーも少し興奮した。