Dictionary Definition:
īrṣy or īrkṣy, cl. 1. P. ī́rṣyati (p. ī́rṣyat TS.), īrṣyāṃ-cakāra, īṣyitum orīrkṣyati Pāṇ. Vop. Dhātup.
• to envy, feel impatient at another's prosperity (with dat.): Desid.īrṣyiṣiṣati or īrṣyiyiṣati Comm. on Pāṇ.