Viriya pāramī : energy, diligence, vigour, effort
What is virya? It is the mind intent on being ever active, devoted, unshaken, not turning back and being indefatigable. It perfects and realizes what is conducive to the positive.[9] …. It is also associated with “Right Effort” (sammā-vāyāma) of the Noble Eightfold Path (Pāli: aṭṭhaṅgiko maggo; Skt.: aṣṭāṅga mārga) and with the “Four Right Exertions” (samma-ppadhāna).