Nirṛti

The figure and term Nirṛti originates in Vedic literature as a conceptual personification of inauspiciousness and the realm of non-existence. The Sanskrit term is interpreted (in later summaries of Vedic etymology) as connected to nirṛ (to separate) and is understood as 'devoid of ṛta' — i.e., the absence or negation of ṛta, the ordering principle of Vedic ritual and cosmos. Over time the figure is incorporated into Puranic and Agamic genealogies and cosmographies, sometimes recast as a directional guardian (dikpala) of the southwest and given iconographic traits in those later sources.

Descriptions vary across sources. Vedic and Brahmana passages describe Nirṛtī as dark, dressed in dark clothes, and associated with dark sacrificial shares (Taittiriya Brahmana); the Atharvaveda (V.7.9) is reported to describe her as having 'golden locks.' Agamic and Puranic accounts (e.g., Vishnudharmottara Purana, Devi-Bhagavata summaries) depict a later form (often male in those texts) as dark-skinned and large-bodied, wearing yellow garments in some Agama descriptions, with a 'terrific' face marked by ill-looking eyes, a gaping mouth, and exposed teeth; vahanas reported include man/lion or donkey, and he may carry a danda (staff). The sources record these variant portrayals without unifying them into a single consistent iconography.

Across Vedic texts Nirṛti personifies death, decay, sorrow, and inauspiciousness and is linked to the realm of the dead and to darkness and non-existence that threaten those who neglect sacrificial or procreative duties. Some Puranic genealogical accounts present Nirṛti as parent or relative of personified ills (for example, mother of Mrityu/Death, Bhaya/Fear, Mahabhaya/Terror or linked to Naraka/hell), indicating a mythic role as progenitor or associate of fear, death, and other inauspicious forces. Functionally, the figure is an explanation for misfortune and a target of ritual speech, offerings, and avoidance in order to preserve ṛta and communal wellbeing.