Temptation (noun)

1. A strong desire or urge to do something, especially something that is wrong or unwise.
2. Something that is attractive and alluring but potentially harmful.

Origin:

From old french temptacion and directly from latin temptationem (nominative tentatio) a trying, testing, a tempting, from temptare to try, test, tempt.

Examples:

1. He couldn't resist the temptation of the chocolate cake.
2. She gave in to the temptation to take the money.
3. The temptation to cheat on the test was great.
4. The temptation to smoke was too much for him.
5. The temptation to buy the new car was almost irresistible.