sycophanticus

sycophanticus [συκοφαντικός; cf. et. CL sycophanta], that constitutes or pertains to false or dishonest accusation, slanderous. 1520 testantur duae illae virulentissimae ac sycophantisissimae criminationes quas evomis in me in Colloquiis Familiaribus (E. Lee) Ep. Erasm. IV 1061 p. 167; ut verba sic citare ad calumniam sit plane ~um Gardiner CC 160.