Delude (verb)

1. To deceive or trick someone by giving them false hope or idea.
2. To mislead or cause someone to believe something that is not true.

Origin:

Delude comes from the latin word "deludere" which means "to mock" or "to deceive" and it was adopted in english in the 16th century.

Examples:

1. He deluded himself into thinking that he could win the race.
2. She was deluded into believing that she could change him.
3. He deluded the investors into believing that the company was profitable.
4. Don"t let him delude you into thinking that he"s changed.
5. He was deluded by her promises of love.