Abstract
_Abhiniveśa_ appears in _Yogasūtras_ (YS) 2.9 as the designation of the last of the five _kleśa_s or afflictions listed in YS 2.3. This paper will examine four questions: What is the deep history of the word _abhiniveśa_? What were the historical sources of Patañjali’s term? Does it have a meaning in the YS distinct from the explanation given by Vyāsa in his commentary on this _sūtra_, which is followed with very little deviation by legions of translators? And, does looking at this _sūtra_ in the context of its historical sources help us to determine the relationship between Patañjali and Vyāsa, a highly contested topic in present-day study of the _Yogasūtras_? The history of _abhiniveśa_ will be examined as it appears in Indian classical literature, in Āyurveda, in the Upaniṣads, classical Vedānta, the _Mahābhārata_, and in Buddhist texts, especially and most tellingly in Yogācāra. This general history of the early semantics of _abhniveśa_ will conclude with a more exact signification of the parameters of this elusive term in the YS.