illuminate

• vt.解明する、説明する；照らす；輝かせる；ランプで飾る
• vi. 照らす

il-「入る、作る」、-lum「照らす、照らす」、語源的にはlight（光）、luminary（光源）と同じ。

illuminate

illuminate: [16] Etymologically, illuminate is a parallel construction to enlighten. It was formed in the late Latin period from the prefix in- and lūmen ‘light’ (source of English luminous). The past participle of the resulting illumināre gave English illuminate. The medieval-sounding sense ‘illustrate manuscripts’ is actually quite recent, replacing in the 18th century the parallel formation enlumine, acquired by English in the 14th century via Old French enluminer from medieval Latin inlūmināre. Illumine [14] came via Old French illuminer. Illustrate is closely related.
=> illustrate, luminous

illuminate (v.)

c. 1500, "to light up, shine on," a back-formation from illumination, or else from Latin illuminatus, past participle of illuminare (see illumination). Earlier was enlumyen (late 14c.) "decorate written material with gold, silver, bright colors," from Old French enluminer, from Late Latin inluminare; also illumine (late 14c.). Related: Illuminated; illuminating.

1. Our interesting teacher could illuminate almost any subject we studied.

私たちの面白い先生は私たちが学んだすべての科目をほとんど説明することができます。

2.We illuminate the enemy plane with searchlights in order to shot at it.

探照灯で敵機を照射するのは、それに射撃するためだ。

3.They use games and drawings to illuminate their subject.

彼らはゲームと絵で彼らのテーマを明らかにした。

4.Intelligent guessing saves time but even wrong guesses illuminate the problem.

正しい推測は時間を節約することができますが、間違った推測でも問題解決にヒントを与えることができます。

5.Tom squeezed his small body behind it in order to illuminate it for Becky 's gratification.

トムはベッキーが彼の明かりを借りて十分に見ることができるように後ろに押した。