योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-3, verse-16

अचेतनादनन्तात्मा भूत्वा ज्ञोऽप्युपलोपमः ।
संसारमूलकषणं कुरु क्रोडमुखाग्रवत् ॥ १६ ॥

acetanādanantātmā bhūtvā jño'pyupalopamaḥ ,
saṃsāramūlakaṣaṇaṃ kuru kroḍamukhāgravat 16

16. acetanāt anantātmā bhūtvā jñaḥ api upalopamaḥ
| saṃsāramūlakaṣaṇam kuru kroḍamukhāgravat ||

16. acetanāt anantātmā bhūtvā,
jñaḥ api upalopamaḥ [bhava] kroḍamukhāgravat saṃsāramūlakaṣaṇam kuru

16. Having become the infinite Self (ātman) by transcending the unconscious, remain like a stone, even if you are a knower. Uproot the very foundation of transmigration (saṃsāra) just as the tip of a boar's snout digs up roots.

Words meanings summery:

• अचेतनात् (acetanāt) - from the unconscious, from the insentient

• अनन्तात्मा (anantātmā) - the infinite Self (ātman), the endless soul

• भूत्वा (bhūtvā) - having become, being

• ज्ञः (jñaḥ) - knower, wise, intelligent

• अपि (api) - even, also, too

• उपलोपमः (upalopamaḥ) - like a stone, resembling a stone

• संसारमूलकषणम् (saṁsāramūlakaṣaṇam) - the uprooting/tearing of the root of transmigration (saṃsāra)

• कुरु (kuru) - do, make, perform

• क्रोडमुखाग्रवत् (kroḍamukhāgravat) - like the tip of a boar's snout

Words meanings and morphology

अचेतनात् (acetanāt) - from the unconscious, from the insentient

(adjective)

Ablative, neuter, singular of acetana

acetana - unconscious, insentient, inanimate, inert

Compound type : tatpuruṣa (a+cetana)

• a – not, non, un-
  indeclinable
• cetana – conscious, intelligent, sentient, living
  adjective (masculine)
  Root: cit (class 1)

Note: Used substantively: 'from the unconscious state/realm'

अनन्तात्मा (anantātmā) - the infinite Self (ātman), the endless soul

(noun)

Nominative, masculine, singular of anantātman

anantātman - the infinite Self, the endless soul, the supreme spirit

Compound type : tatpuruṣa (ananta+ātman)

• ananta – infinite, endless, boundless
  adjective (masculine)
  Prefix: an
• ātman – Self, soul, essence, spirit
  noun (masculine)
  Root: an (class 2)

भूत्वा (bhūtvā) - having become, being

(indeclinable)

Absolutive/Gerund

Indeclinable participle, formed from root 'bhū' with suffix '-tvā'.

Root: bhū (class 1)

ज्ञः (jñaḥ) - knower, wise, intelligent

(adjective)

Nominative, masculine, singular of jña

jña - knowing, wise, acquainted with, a knower

Root: jñā (class 9)

Note: Used substantively: 'the knower'

अपि (api) - even, also, too

(indeclinable)

उपलोपमः (upalopamaḥ) - like a stone, resembling a stone

(adjective)

Nominative, masculine, singular of upalopama

upalopama - like a stone, resembling a stone, stone-like

Compound type : tatpuruṣa (upala+upama)

• upala – stone, rock, gem
  noun (masculine)
• upama – likeness, comparison, similar to
  adjective (masculine)

Note: Implied predicate for 'jñaḥ'

संसारमूलकषणम् (saṁsāramūlakaṣaṇam) - the uprooting/tearing of the root of transmigration (saṃsāra)

(noun)

Accusative, neuter, singular of saṃsāramūlakaṣaṇa

saṁsāramūlakaṣaṇa - the act of tearing up or destroying the root of saṃsāra

Compound type : tatpuruṣa (saṃsāra+mūla+kaṣaṇa)

• saṃsāra – transmigration, cycle of rebirth, worldly existence (saṃsāra)
  noun (masculine)
  Prefix: sam
  Root: sṛ (class 1)
• mūla – root, origin, foundation, cause
  noun (neuter)
• kaṣaṇa – scratching, rubbing, tearing, destroying
  noun (neuter)
  From root 'kaṣ' (to scratch, rub, tear)
  Root: kaṣ (class 1)

कुरु (kuru) - do, make, perform

(verb)

2nd person , singular, active, imperative (loṭ) of kṛ

Root: kṛ (class 8)

क्रोडमुखाग्रवत् (kroḍamukhāgravat) - like the tip of a boar's snout

(adjective)

Nominative, neuter, singular of kroḍamukhāgravat

kroḍamukhāgravat - like the tip of a boar's snout (used to dig/uproot)

Derived from 'kroḍa-mukha-agra' (tip of boar's snout) with the suffix '-vat' (like, as)

Compound type : tatpuruṣa (kroḍa+mukha+agra+vat)

• kroḍa – boar, hog
  noun (masculine)
• mukha – mouth, face, snout, front
  noun (neuter)
• agra – tip, point, front, summit
  noun (neuter)
• vat – like, as, in the manner of
  indeclinable
  Suffix indicating similarity

Note: Used adverbially to modify 'kuru'