Etymology: formed as fraudulentadj. + -nesssuffix.
rare.
The quality of being fraudulent.
ΘΚΠ
the mind > mental capacity > knowledge > conformity with what is known, truth > deceit, deception, trickery > cheating, fraud > [noun] > fraudulent quality
falsenessc1330
fraudulence1610
fraudulency1630
fraudulentness1727
1727 in N. Bailey Universal Etymol. Eng. Dict. II
This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2018).