Webster's Revised Unabridged Dictionary · 1913

Delude

Delude , transitive verb

[Latin deludere, delusum; de- + ludere to play, make sport of, mock. See Ludicrous.]

1.
To lead from truth or into error; to mislead the mind or judgment of; to beguile; to impose on; to dupe; to make a fool of.
To delude the nation by an airy phantom. — Burke
2.
To frustrate or disappoint.
It deludes thy search. — Dryden