महाभारतः mahābhārataḥ - book-3, chapter-278, verse-8

विनष्टचक्षुषस्तस्य बालपुत्रस्य धीमतः ।
सामीप्येन हृतं राज्यं छिद्रेऽस्मिन्पूर्ववैरिणा ॥८॥

8. vinaṣṭacakṣuṣastasya bālaputrasya dhīmataḥ ,
sāmīpyena hṛtaṁ rājyaṁ chidre'sminpūrvavairiṇā.

8. vinaṣṭacakṣuṣaḥ tasya bālaputrasya dhīmataḥ
sāmīpyena hṛtaṃ rājyaṃ chidre asmin pūrvavairiṇā

8. While that wise king was blind and his intelligent son was still a child, a former enemy, seizing this opportunity (chidre) through their vulnerable state (sāmīpyena), took his kingdom.

Words meanings summery:

• विनष्टचक्षुषः (vinaṣṭacakṣuṣaḥ) - of that king who became blind (of one whose eyes are destroyed, of a blind person)

• तस्य (tasya) - of that king (Dyumatsena) (of him)

• बालपुत्रस्य (bālaputrasya) - of his (the king's) child-son (of the child-son)

• धीमतः (dhīmataḥ) - of the intelligent son (of the intelligent, wise)

• सामीप्येन (sāmīpyena) - through their vulnerable state (by proximity, due to nearness, through closeness/vulnerability)

• हृतं (hṛtaṁ) - taken, carried away, stolen

• राज्यं (rājyaṁ) - kingdom, sovereignty

• छिद्रे (chidre) - at this weakness, seizing this opportunity (in the hole, in the weakness, at the opportunity)

• अस्मिन् (asmin) - in this (weakness/opportunity) (in this)

• पूर्ववैरिणा (pūrvavairiṇā) - by a former enemy

Words meanings and morphology

विनष्टचक्षुषः (vinaṣṭacakṣuṣaḥ) - of that king who became blind (of one whose eyes are destroyed, of a blind person)

(adjective)

Genitive, masculine, singular of vinaṣṭacakṣus

vinaṣṭacakṣus - one whose eyes are destroyed, blind, sightless

Compound type : bahuvrīhi (vinaṣṭa+cakṣus)

• vinaṣṭa – destroyed, lost, perished
  adjective
  Past Passive Participle
  From prefix vi- + root naś + suffix kta
  Prefix: vi
  Root: naś (class 4)
• cakṣus – eye, sight, vision
  noun (neuter)
  Root: cakṣ (class 2)

तस्य (tasya) - of that king (Dyumatsena) (of him)

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, it

बालपुत्रस्य (bālaputrasya) - of his (the king's) child-son (of the child-son)

(noun)

Genitive, masculine, singular of bālaputra

bālaputra - child-son, young son

Compound type : tatpuruṣa (bāla+putra)

• bāla – child, young, immature
  adjective (masculine)
• putra – son, child
  noun (masculine)

धीमतः (dhīmataḥ) - of the intelligent son (of the intelligent, wise)

(adjective)

Genitive, masculine, singular of dhīmat

dhīmat - intelligent, wise, thoughtful, sagacious

सामीप्येन (sāmīpyena) - through their vulnerable state (by proximity, due to nearness, through closeness/vulnerability)

(noun)

Instrumental, neuter, singular of sāmīpya

sāmīpya - proximity, nearness, closeness, contiguity

हृतं (hṛtaṁ) - taken, carried away, stolen

(adjective)

Nominative, neuter, singular of hṛta

hṛta - taken, carried off, stolen, deprived of

Past Passive Participle

From root hṛ + suffix kta (ta)

Root: hṛ (class 1)

राज्यं (rājyaṁ) - kingdom, sovereignty

(noun)

Nominative, neuter, singular of rājya

rājya - kingdom, realm, sovereignty, rule

Root: rāj (class 1)

छिद्रे (chidre) - at this weakness, seizing this opportunity (in the hole, in the weakness, at the opportunity)

(noun)

Locative, neuter, singular of chidra

chidra - hole, fault, defect, weak point, opportunity, flaw

Root: chid (class 7)

अस्मिन् (asmin) - in this (weakness/opportunity) (in this)

(pronoun)

Locative, neuter, singular of idam

idam - this, here

पूर्ववैरिणा (pūrvavairiṇā) - by a former enemy

(noun)

Instrumental, masculine, singular of pūrvavairiṇ

pūrvavairiṇ - a former enemy

Compound type : karmadhāraya (pūrva+vairin)

• pūrva – former, previous, eastern, ancient
  adjective (masculine)
• vairin – enemy, hostile, adversary
  noun (masculine)
  Root: vīr (class 10)