untruth

abandon, forsake v be sexually unfaithful to one's partner in marriage v give away information about somebody v cause someone to believe an untruth

cause someone to believe an untruth

be dishonest with v cause someone to believe an untruth

a dealer in untruths or falsehoods.

be in a horizontal position v originate (in) v be and remain in a particular state or condition v tell an untruth