How CL can become wrong? That was my illiteracy.

पतिव्रता pativratā, or patibratā, pop. patibartā, s. A chaste and faithful wife. [lw. Sk. id.]

पत्कर् patkar, s. Fallen dry leaves. [cf. patkerā.]

पत्केरा patkerā, s. Fallen leaves; rubbish. [cmpd. pāt and kero.]

Source : Turner, R. L. (Ralph Lilley), Sir. A comparative and etymological dictionary of the Nepali language. London: K. Paul, Trench, Trubner, 1931

http://dsal.uchicago.edu/dictionaries/schmidt/

And Thank you to Biste jyu too.