zeal, energy, endeavour hard work, eagerness Vin.i.50; SN.iv.288, SN.iv.291, SN.iv.302; Cnd. s.v. Ne.29; Vv-a.147; Pv-a.5, Pv-a.135; Vism.90 (āpajjati), Vism.644 (˚ppahānaṃ)
■ Cp. appossukka.

*utsukya fr. ussuka; cp. BSk. utsukya Divy.601 and autsukya Avs.i.85