adjective troublesome, annoying; (m.) a troubler worrier SN.i.174 (variant reading pagaṇḍaka; C. rasagiddha; trsl “pertinacious”).

pa + kaṭṭha + ka; kaṭṭha pp. of kṛṣ, cp. Sk. prakarṣaka of same root in same meaning, but cp. also kaṭṭha²