महाभारतः mahābhārataḥ - book-12, chapter-267, verse-18

चित्तमिन्द्रियसंघातं मनो बुद्धिं तथाष्टमीम् ।
अष्टौ ज्ञानेन्द्रियाण्याहुरेतान्यध्यात्मचिन्तकाः ॥१८॥

18. cittamindriyasaṁghātaṁ mano buddhiṁ tathāṣṭamīm ,
aṣṭau jñānendriyāṇyāhuretānyadhyātmacintakāḥ.

18. cittam indriyasaṃghātam manaḥ buddhim tathā aṣṭamīm
| aṣṭau jñānendriyāṇi āhuḥ etāni adhyātmacintakāḥ

18. adhyātmacintakāḥ etāni cittam indriyasaṃghātam
manaḥ buddhim tathā aṣṭamīm aṣṭau jñānendriyāṇi āhuḥ

18. Spiritual thinkers (adhyātmacintakāḥ) declare these to be the eight cognitive senses (jñānendriyāṇi): consciousness (citta), the aggregate of senses, the sensory mind (manas), and the intellect (buddhi), with consciousness (citta) being counted as the eighth.

Words meanings summery:

• चित्तम् (cittam) - mind, consciousness, thought

• इन्द्रियसंघातम् (indriyasaṁghātam) - refers to the five external cognitive senses (jñānendriyas) collectively (the aggregate of senses, collection of sensory organs)

• मनः (manaḥ) - mind, sensory mind, mental faculty

• बुद्धिम् (buddhim) - intellect, discernment, understanding

• तथा (tathā) - and, also, in that way

• अष्टमीम् (aṣṭamīm) - referring to 'citta' as the eighth entity in the list of cognitive senses (5 external senses + manas + buddhi + citta) (the eighth)

• अष्टौ (aṣṭau) - eight

• ज्ञानेन्द्रियाणि (jñānendriyāṇi) - refers to the faculties through which knowledge is acquired, including both external and internal senses as enumerated here. (cognitive senses, senses of knowledge)

• आहुः (āhuḥ) - they say, they declare, they state

• एतानि (etāni) - these (things)

• अध्यात्मचिन्तकाः (adhyātmacintakāḥ) - spiritual thinkers, those who reflect on the self

Words meanings and morphology

चित्तम् (cittam) - mind, consciousness, thought

(noun)

Accusative, neuter, singular of citta

citta - mind, consciousness, thought, intellect

From the root cit (to perceive, know, understand)

Root: cit (class 1)

Note: Object of 'āhuḥ'.

इन्द्रियसंघातम् (indriyasaṁghātam) - refers to the five external cognitive senses (jñānendriyas) collectively (the aggregate of senses, collection of sensory organs)

(noun)

Accusative, masculine, singular of indriyasaṃghāta

indriyasaṁghāta - aggregate of senses, collection of sensory organs

Compound type : tatpurusha (indriya+saṃghāta)

• indriya – sense organ, faculty of sense, pertaining to Indra
  noun (neuter)
  Derived from Indra, often refers to the powers/faculties of Indra
• saṃghāta – aggregate, collection, combination, multitude
  noun (masculine)
  From sam-han (to strike together, combine)
  Prefix: sam
  Root: han (class 2)

Note: Object of 'āhuḥ'.

मनः (manaḥ) - mind, sensory mind, mental faculty

(noun)

Accusative, neuter, singular of manas

manas - mind, intellect, thought, sensory faculty

From the root man (to think, perceive)

Root: man (class 4)

Note: Object of 'āhuḥ'.

बुद्धिम् (buddhim) - intellect, discernment, understanding

(noun)

Accusative, feminine, singular of buddhi

buddhi - intellect, reason, judgment, understanding, perception

From the root budh (to know, understand, awaken)

Root: budh (class 1)

Note: Object of 'āhuḥ'.

तथा (tathā) - and, also, in that way

(indeclinable)

Conjunctive adverb

अष्टमीम् (aṣṭamīm) - referring to 'citta' as the eighth entity in the list of cognitive senses (5 external senses + manas + buddhi + citta) (the eighth)

(adjective)

Accusative, feminine, singular of aṣṭamī

aṣṭamī - eighth, the eighth day of a lunar fortnight

Feminine ordinal number from aṣṭan (eight)

Note: Agrees with an implied feminine noun, or in this context, refers to a neuter noun 'citta' by an old grammatical convention, or is a specific philosophical numbering.

अष्टौ (aṣṭau) - eight

(numeral)

Note: Agrees with 'jñānendriyāṇi'.

ज्ञानेन्द्रियाणि (jñānendriyāṇi) - refers to the faculties through which knowledge is acquired, including both external and internal senses as enumerated here. (cognitive senses, senses of knowledge)

(noun)

Accusative, neuter, plural of jñānendriya

jñānendriya - cognitive sense, organ of knowledge (e.g., eye, ear)

Compound type : tatpurusha (jñāna+indriya)

• jñāna – knowledge, wisdom, understanding
  noun (neuter)
  From the root jñā (to know)
  Root: jñā (class 9)
• indriya – sense organ, faculty of sense, pertaining to Indra
  noun (neuter)
  Derived from Indra, often refers to the powers/faculties of Indra

Note: Object of 'āhuḥ'.

आहुः (āhuḥ) - they say, they declare, they state

(verb)

3rd person , plural, active, perfect (lit) of ah

Perfect Active

Irregular perfect form (lit) from the root ah

Root: ah (class 2)

एतानि (etāni) - these (things)

(pronoun)

Accusative, neuter, plural of etad

etad - this, these

Demonstrative pronoun

Note: Refers to the list of faculties: citta, indriyasaṃghāta, manas, buddhi, and aṣṭamīm.

अध्यात्मचिन्तकाः (adhyātmacintakāḥ) - spiritual thinkers, those who reflect on the self

(noun)

Nominative, masculine, plural of adhyātmacintaka

adhyātmacintaka - spiritual thinker, one who contemplates the Self (ātman) or spiritual matters

Compound type : tatpurusha (adhyātma+cintaka)

• adhyātma – pertaining to the self (ātman) or spirit, spiritual
  noun (neuter)
  Compound of adhi (over, concerning) and ātman (self, soul)
  Prefix: adhi
• cintaka – thinker, ponderer, reflector
  adjective (masculine)
  Agent noun/Adjective from cint
  From the root cint (to think, consider) with suffix -aka
  Root: cint (class 10)

Note: Subject of 'āhuḥ'.