Meaning

noun (Hinduism and Buddhism) the beatitude that transcends the cycle of reincarnation; characterized by the extinction of desire and suffering and individual consciousness

noun any place of complete bliss and delight and peace

originBorrowed from Sanskrit निर्वाण (nirvāṇa, “blown or put out, extinguished”), from निस् (nis, “out”) + वा (vā, “to blow”), the second part cognate with Russian ве́тер (véter, “wind”), weather, vent and wind.

Etymology from Wiktionary, CC BY-SA 3.0