योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-124, verse-36

निर्विकल्पा हि चित्तुर्यं तदेवास्तीह नेतरत् ।
जाग्रत्स्वप्नसुषुप्ताख्यं त्रयं रूपं हि चेतसः ॥ ३६ ॥

nirvikalpā hi citturyaṃ tadevāstīha netarat ,
jāgratsvapnasuṣuptākhyaṃ trayaṃ rūpaṃ hi cetasaḥ 36

36. nirvikalpā hi cit turīyam tat eva asti iha na itarat
jāgratsvapnasuṣuptākhyam trayam rūpam hi cetasaḥ

36. cit turīyam hi nirvikalpā tat eva asti iha itarat
na jāgratsvapnasuṣuptākhyam trayam hi cetasaḥ rūpam

36. Indeed, the fourth (turīya) state is consciousness (cit) devoid of distinctions or conceptualizations. Only that exists here, nothing else. The triad known as waking, dream, and deep sleep is truly the form of the mind (cetas).

Words meanings summery:

• निर्विकल्पा (nirvikalpā) - without modification, free from conceptualization, undifferentiated

• हि (hi) - indeed, surely, for

• चित् (cit) - pure consciousness (cit) (consciousness, pure awareness)

• तुरीयम् (turīyam) - the fourth state of consciousness (turīya) (the fourth (state), pertaining to the fourth)

• तत् (tat) - that

• एव (eva) - only, indeed, just

• अस्ति (asti) - is, exists

• इह (iha) - here, in this world

• न (na) - not, no

• इतरत् (itarat) - other, different

• जाग्रत्स्वप्नसुषुप्ताख्यम् (jāgratsvapnasuṣuptākhyam) - named waking, dream, and deep sleep

• त्रयम् (trayam) - triad, three

• रूपम् (rūpam) - form, nature, appearance

• हि (hi) - indeed, surely, for

• चेतसः (cetasaḥ) - of the mind, of consciousness

Words meanings and morphology

निर्विकल्पा (nirvikalpā) - without modification, free from conceptualization, undifferentiated

(adjective)

Nominative, feminine, singular of nirvikalpa

nirvikalpa - free from doubt or distinction, undifferentiated, absolute, immutable

Compound type : bahuvrīhi (nis+vikalpa)

• nis – without, free from, devoid of
  indeclinable
  Prefix indicating negation or absence.
• vikalpa – difference, distinction, doubt, conceptualization, mental modification
  noun (masculine)

हि (hi) - indeed, surely, for

(indeclinable)

चित् (cit) - pure consciousness (cit) (consciousness, pure awareness)

(noun)

Nominative, feminine, singular of cit

cit - consciousness, spirit, pure thought, understanding

तुरीयम् (turīyam) - the fourth state of consciousness (turīya) (the fourth (state), pertaining to the fourth)

(adjective)

Nominative, neuter, singular of turīya

turīya - fourth, the fourth state (of consciousness, beyond waking, dream, and deep sleep)

तत् (tat) - that

(pronoun)

Nominative, neuter, singular of tad

tad - that, it (demonstrative pronoun)

एव (eva) - only, indeed, just

(indeclinable)

अस्ति (asti) - is, exists

(verb)

3rd person , singular, active, present (laṭ) of as

Root: as (class 2)

इह (iha) - here, in this world

(indeclinable)

न (na) - not, no

(indeclinable)

इतरत् (itarat) - other, different

(pronoun)

Nominative, neuter, singular of itara

itara - other, different, another

जाग्रत्स्वप्नसुषुप्ताख्यम् (jāgratsvapnasuṣuptākhyam) - named waking, dream, and deep sleep

(adjective)

Nominative, neuter, singular of jāgratsvapnasuṣuptākhya

jāgratsvapnasuṣuptākhya - named or called waking, dream, and deep sleep

Compound type : bahuvrīhi (jāgrat+svapna+suṣupta+ākhya)

• jāgrat – waking, awake
  adjective
  Present Active Participle
  Derived from root jāgṛ.
  Root: jāgṛ (class 2)
• svapna – dream, sleep
  noun (masculine)
• suṣupta – deep sleep, asleep
  adjective
  Past Passive Participle
  Derived from root svap with prefix su-.
  Prefix: su
  Root: svap (class 2)
• ākhya – named, called, denominated
  adjective
  Participle
  Derived from root khyā with prefix ā, meaning 'to be called' or 'named'.
  Prefix: ā
  Root: khyā (class 2)

त्रयम् (trayam) - triad, three

(noun)

Nominative, neuter, singular of traya

traya - triad, group of three

रूपम् (rūpam) - form, nature, appearance

(noun)

Nominative, neuter, singular of rūpa

rūpa - form, shape, nature, appearance, beauty

हि (hi) - indeed, surely, for

(indeclinable)

चेतसः (cetasaḥ) - of the mind, of consciousness

(noun)

Genitive, neuter, singular of cetas

cetas - mind, intelligence, consciousness, heart