Meaning

noun Hindu discipline aimed at training the consciousness for a state of perfect spiritual insight and tranquility that is achieved through the three paths of actions and knowledge and devotion

noun a system of exercises practiced as part of the Hindu discipline to promote control of the body and mind

originEtymology tree Proto-Indo-European *yewg- Proto-Indo-European *yówg-os Proto-Indo-Iranian *yáwgas Proto-Indo-Aryan *yáwgas Sanskrit योग॑ (yóga)bor. English yoga Borrowed from Sanskrit योग (yóga, “yoking, union”), from Proto-Indo-Aryan *yáwgas, from Proto-Indo-Iranian *yáwgas, from Proto-Indo-European *yéwg-o-s, from *yewg- (“to join”) (whence also yoke).

Etymology from Wiktionary, CC BY-SA 3.0