I
An asterisk (*) preceding a Sanskṛt word herein means ‘derived from the verbal root …’

T

Tamas One of the three guṇas – essential attributes or characteristics of manifested beings and things: the quality of darkness, illusion, ignorance. In a different sense Tamas also means passivity, repose, inertia. (See Bh.G. chs. xiv and xviii.) (Bh.G. 41)

Tat (also Tad) The word used by Vedic sages to represent that which is beyond expression, the unnamable principle – rendered THAT – in contradistinction to the manifested world, Idam (This). (The neuter form of a pronominal particle used as a noun. Bh.G. 119)
I