Belie (verb)

1. To give a false impression of.
2. To show (something) to be false or misleading.

Origin:

From the old english word "beleogan" meaning "to deceive".

Examples:

1. Her calm exterior belied the turmoil inside.
2. His words belied his true feelings.
3. Her actions belied her claims of innocence.
4. The evidence belied the defendant's testimony.
5. The state of the building belied its age.