Sanskrit

योगश्चित्तवृत्तिनिरोधः

Transliteration (IAST)

yogaś citta-vṛtti-nirodhaḥ

Word by word

yogaḥ

yoga

citta

mind; consciousness

vṛtti

modifications; fluctuations

nirodhaḥ

stilling; restraint, cessation

Translation

Yoga is the stilling of the fluctuations of the mind.

Source: Surenyogalaya Open Translation (English) · License: CC0-1.0