Trojan (noun)

1. A member of the ancient Trojan people.
2. A person or thing that disguises its true nature or intentions, especially in order to trick or deceive others.

Origin:

From the trojan people, a legendary nation of ancient greece, as described in homer"s iliad and virgil"s aeneid, who were said to have fought against the greeks in the trojan war. the name is derived from the ancient city of troy, located in present-day turkey.

Examples:

1. Hector was a Trojan prince, who fought against the Greeks in the Trojan War.
2. The Trojan horse was a wooden horse used by the Greeks to infiltrate the city of Troy.
3. The Trojan malware disguised itself as a legitimate program and was able to steal personal information.
4. He was a Trojan in the company and provided confidential information to the competitors.
5. The Trojan email contained a malware that infected the computer when opened.