महाभारतः mahābhārataḥ - book-14, chapter-46, verse-42

इन्द्रियाण्युपसंहृत्य कूर्मोऽङ्गानीव सर्वशः ।
क्षीणेन्द्रियमनोबुद्धिर्निरीक्षेत निरिन्द्रियः ॥४२॥

42. indriyāṇyupasaṁhṛtya kūrmo'ṅgānīva sarvaśaḥ ,
kṣīṇendriyamanobuddhirnirīkṣeta nirindriyaḥ.

42. indriyāṇi upasaṃhṛtya kūrmaḥ aṅgāni iva sarvaśaḥ
kṣīṇendriyamanobuddhiḥ nirīkṣeta nirindriyaḥ

42. Just as a tortoise withdraws all its limbs, so too, having completely withdrawn the senses, one should observe, with senses, mind, and intellect subdued, as if free from the senses.

Words meanings summery:

• इन्द्रियाणि (indriyāṇi) - senses, sense organs, faculties

• उपसंहृत्य (upasaṁhṛtya) - having withdrawn, having reined in, having restrained

• कूर्मः (kūrmaḥ) - tortoise, turtle

• अङ्गानि (aṅgāni) - limbs, body parts, components

• इव (iva) - like, as, as if

• सर्वशः (sarvaśaḥ) - entirely, completely, in every way

• क्षीणेन्द्रियमनोबुद्धिः (kṣīṇendriyamanobuddhiḥ) - one whose senses, mind, and intellect are subdued/diminished

• निरीक्षेत (nirīkṣeta) - should observe, should perceive, should look at

• निरिन्द्रियः (nirindriyaḥ) - without senses, devoid of senses

Words meanings and morphology

इन्द्रियाणि (indriyāṇi) - senses, sense organs, faculties

(noun)

Accusative, neuter, plural of indriya

indriya - sense, sense organ, faculty, power

From 'indra' (Indra) + '-iya'. Related to Indra's power.

उपसंहृत्य (upasaṁhṛtya) - having withdrawn, having reined in, having restrained

(indeclinable)

absolutive

From 'upa' + 'sam' + root 'hṛ' (to take, carry) with suffix '-tya'.

Prefixes: upa+sam

Root: hṛ (class 1)

Note: Absolutive (gerund).

कूर्मः (kūrmaḥ) - tortoise, turtle

(noun)

Nominative, masculine, singular of kūrma

kūrma - tortoise, turtle

अङ्गानि (aṅgāni) - limbs, body parts, components

(noun)

Accusative, neuter, plural of aṅga

aṅga - limb, body part, component, division

इव (iva) - like, as, as if

(indeclinable)

Note: Particle of comparison.

सर्वशः (sarvaśaḥ) - entirely, completely, in every way

(indeclinable)

From 'sarva' (all) with suffix '-śas'.

Note: Adverbial suffix.

क्षीणेन्द्रियमनोबुद्धिः (kṣīṇendriyamanobuddhiḥ) - one whose senses, mind, and intellect are subdued/diminished

(adjective)

Nominative, masculine, singular of kṣīṇendriyamanobuddhi

kṣīṇendriyamanobuddhi - one whose senses, mind, and intellect are diminished, weakened, or subdued

Compound type : bahuvrīhi (kṣīṇa+indriya+manas+buddhi)

• kṣīṇa – diminished, worn out, destroyed, emaciated
  adjective (masculine)
  Past Passive Participle
  From root 'kṣi' (to decay, destroy).
  Root: kṣi (class 5)
• indriya – sense, sense organ, faculty
  noun (neuter)
• manas – mind, intellect, thought
  noun (neuter)
• buddhi – intellect, understanding, perception
  noun (feminine)
  From root 'budh' (to know, perceive).
  Root: budh (class 1)

Note: Bahuvrīhi compound, describing a person.

निरीक्षेत (nirīkṣeta) - should observe, should perceive, should look at

(verb)

3rd person , singular, middle, optative (vidhiliṅ) of nirīkṣ

optative

From 'nis' + 'īkṣ' (to see). Atmanepada, 3rd person singular.

Prefix: nis

Root: īkṣ (class 1)

निरिन्द्रियः (nirindriyaḥ) - without senses, devoid of senses

(adjective)

Nominative, masculine, singular of nirindriya

nirindriya - without senses, devoid of senses, passionless

From 'nis' (without) + 'indriya' (senses).

Compound type : avyayībhāva (nis+indriya)

• nis – without, out, free from
  indeclinable
  Prefix/indeclinable.
• indriya – sense, sense organ, faculty
  noun (neuter)