the principle of life.
the individual self, known after enlightenment to be identical with Brahman.
(initial capital letter) the World Soul, from which all individual souls derive, and to which they return as the supreme goal of existence.
Also at·ma [aht-muh] /ˈɑt mə/.
Origin of atman
First recorded in 1775–85, atman is from the Sanskrit word ātman breath, self
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the personal soul or self; the thinking principle as manifested in consciousness
Brahman considered as the Universal Soul, the great Self or Person that dwells in the entire created order
Word Origin for atman
from Sanskrit ātman breath; compare Old High German ātum breath
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1785, from Sanskrit atma "essence, breath, soul," from PIE *etmen "breath" (a root found in Sanskrit and Germanic, cf. Old English æðm, Dutch adem, Old High German atum "breath," Old English eþian, Dutch ademen "to breathe").
Online Etymology Dictionary, © 2010 Douglas Harper