महाभारतः mahābhārataḥ - book-1, chapter-2, verse-83

वारणावतयात्रा च मन्त्रो दुर्योधनस्य च ।
विदुरस्य च वाक्येन सुरुङ्गोपक्रमक्रिया ॥८३॥

83. vāraṇāvatayātrā ca mantro duryodhanasya ca ,
vidurasya ca vākyena suruṅgopakramakriyā.

83. vāraṇāvatayātrā ca mantraḥ duryodhanasya ca
vidurasya ca vākyena suruṅgopakramakriyā

83. The journey to Vāraṇāvata, Duryodhana's plot, and the tunnel scheme, initiated by Vidura's advice, are recounted here.

Words meanings summery:

• वारणावतयात्रा (vāraṇāvatayātrā) - the journey of the Pāṇḍavas to Vāraṇāvata (which was a trap) (journey to Vāraṇāvata)

• च (ca) - and

• मन्त्रः (mantraḥ) - the secret plot/scheme (counsel, secret plan, plot)

• दुर्योधनस्य (duryodhanasya) - of Duryodhana

• च (ca) - and

• विदुरस्य (vidurasya) - of Vidura

• च (ca) - and

• वाक्येन (vākyena) - by the advice/counsel (by the word, by the statement)

• सुरुङ्गोपक्रमक्रिया (suruṅgopakramakriyā) - the operation of digging the tunnel (to escape) (the action of starting a tunnel)

Words meanings and morphology

वारणावतयात्रा (vāraṇāvatayātrā) - the journey of the Pāṇḍavas to Vāraṇāvata (which was a trap) (journey to Vāraṇāvata)

(noun)

Nominative, feminine, singular of vāraṇāvatayātrā

vāraṇāvatayātrā - journey to Vāraṇāvata

Compound type : tatpuruṣa (vāraṇāvata+yātrā)

• vāraṇāvata – Vāraṇāvata (name of a city)
  noun (neuter)
• yātrā – journey, procession, going
  noun (feminine)
  action noun
  from root yā (to go) + trā (suffix)
  Root: yā (class 2)

च (ca) - and

(indeclinable)

मन्त्रः (mantraḥ) - the secret plot/scheme (counsel, secret plan, plot)

(noun)

Nominative, masculine, singular of mantra

mantra - sacred utterance, hymn, counsel, secret plan

agent noun/action noun

from root man (to think) + tra (suffix)

Root: man (class 4)

दुर्योधनस्य (duryodhanasya) - of Duryodhana

(noun)

Genitive, masculine, singular of duryodhana

duryodhana - Duryodhana (proper name)

Compound: dur (difficult) + yodhana (fighting)

Compound type : tatpuruṣa (dur+yodhana)

• dur – bad, difficult
  indeclinable
• yodhana – fighting, warrior
  noun (masculine)
  action noun/agent noun
  from root yudh (to fight)
  Root: yudh (class 4)

च (ca) - and

(indeclinable)

विदुरस्य (vidurasya) - of Vidura

(noun)

Genitive, masculine, singular of vidura

vidura - Vidura (proper name, 'far-sighted' or 'wise')

Compound: vi (prefix) + dura (far, difficult)

Compound type : bahuvrīhi (vi+dura)

• vi – apart, distinct, intensive
  indeclinable
• dura – distant, far, difficult
  adjective

च (ca) - and

(indeclinable)

वाक्येन (vākyena) - by the advice/counsel (by the word, by the statement)

(noun)

Instrumental, neuter, singular of vākya

vākya - speech, sentence, statement, counsel

action noun

from root vac (to speak) + ya (suffix)

Root: vac (class 2)

सुरुङ्गोपक्रमक्रिया (suruṅgopakramakriyā) - the operation of digging the tunnel (to escape) (the action of starting a tunnel)

(noun)

Nominative, feminine, singular of suruṅgopakramakriyā

suruṅgopakramakriyā - the action of starting a tunnel, the undertaking of a tunnel

Compound type : tatpuruṣa (suruṅgā+upakrama+kriyā)

• suruṅgā – tunnel, mine, subterranean passage
  noun (feminine)
• upakrama – beginning, undertaking, stratagem
  noun (masculine)
  action noun
  from upa + root kram (to step, undertake)
  Prefix: upa
  Root: kram (class 1)
• kriyā – action, act, ritual
  noun (feminine)
  action noun
  from root kṛ (to do, make)
  Root: kṛ (class 8)

Note: Refers to the act of digging the tunnel.