• nirṛteḥ — of Nirṛti (Death)
  Nirṛti — personified destruction, the deity of the southwestern quarter. The demon's destination is named precisely; for Gauḍīyas this distinguishes the demons Kṛṣṇa kills in Vraja from those (like Pūtanā, Aghāsura) who receive sārūpya — context decides the post-mortem grade.
• kṣayam — to the abode (of destruction)
  Kṣaya — dissolution, the abode of decay. Note: the verse does not say Ariṣṭa attained liberation. The Bhāgavatam is doctrinally precise about which slain demons gain it and which do not.
• puṣpaiḥ — with flowers
  The puṣpa-vṛṣṭi, the celestial rain of flowers, is the gods' standard kīrtana — silent, fragrant approval falling from a cleared sky.
• harim — Lord Hari
  Used at the verse's end after Ariṣṭa's end — Hari, the remover, has removed. The two events are syntactically adjacent.
• suraḥ — the demigods
  Sura — counterpart of asura. The cosmos's full bench-side reaction: the asura is finished, the suras pour flowers. The pasture continues its day.

The demigods scatter flowers from above the moment the demon expires below. Vraja is constantly observed from svarga — the gods are an audience for every pastime, and they signal each act's perfection by a fall of petals.