«وَهُوَ مَا يَكُونُ بِسَبَبِ تُهْمَةِ الرَّاوِي بِالْكَذِبِ هُوَ الْمَتْرُوكُ»
The second rejected category, arising from an accusation of lying against the narrator, is matrūk.
A matrūk (abandoned) report suffers from a serious deficit of trust because credible reasons exist to suspect its transmitter. This does not establish, in the same way as a demonstrated forgery, that the narrator personally invented the particular wording.
Applied distinction: demonstrated deliberate fabrication leads to mawḍūʿ; a report transmitted by a narrator substantially accused of lying can be matrūk. An occasional minor mistake is not enough to accuse someone of dishonesty.