वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-5, chapter-37, verse-4

त्वमस्मिन् कार्यनिर्योगे प्रमाणं हरिसत्तम ।
तस्य चिन्तय यो यत्नो दुःखक्षयकरो भवेत् ॥४॥

4. tvamasmin kāryaniryoge pramāṇaṃ harisattama ,
tasya cintaya yo yatno duḥkhakṣayakaro bhavet.

4. tvam asmin kāryaniryoge pramāṇam harisattama
tasya cintaya yaḥ yatnaḥ duḥkhakṣayakaraḥ bhavet

4. harisattama tvam asmin kāryaniryoge pramāṇam
tasya cintaya yaḥ yatnaḥ duḥkhakṣayakaraḥ bhavet

4. O best of monkeys, you are the authority in this particular task. Therefore, consider what effort would be effective in eliminating sorrow.

Words meanings summery:

• त्वम् (tvam) - you

• अस्मिन् (asmin) - in this

• कार्यनिर्योगे (kāryaniryoge) - in this particular task (of finding Sītā and reporting back) (in the execution of a task, in an undertaking)

• प्रमाणम् (pramāṇam) - the ultimate authority or decisive factor for success in this mission (authority, proof, standard, measure)

• हरिसत्तम (harisattama) - O Hanuman, best among the Vanaras (O best of monkeys, O best among heroes)

• तस्य (tasya) - therefore (of that, for that reason, therefore)

• चिन्तय (cintaya) - consider, think, reflect

• यः (yaḥ) - which, who

• यत्नः (yatnaḥ) - effort, exertion, attempt

• दुःखक्षयकरः (duḥkhakṣayakaraḥ) - that which brings about the cessation of sorrow (Sita's suffering) (causing the destruction of sorrow, sorrow-destroying)

• भवेत् (bhavet) - may it be, should be, would be

Words meanings and morphology

त्वम् (tvam) - you

(pronoun)

Nominative, singular of tvad

tvad - you

अस्मिन् (asmin) - in this

(pronoun)

Locative, masculine, singular of idam

idam - this

Note: Refers to 'kāryaniryoge'

कार्यनिर्योगे (kāryaniryoge) - in this particular task (of finding Sītā and reporting back) (in the execution of a task, in an undertaking)

(noun)

Locative, masculine, singular of kāryaniryoga

kāryaniryoga - engagement in an activity, completion of a task

Compound type : tatpuruṣa (kārya+niryoga)

• kārya – to be done, duty, business, action, task
  verbal derivative (neuter)
  Gerundive
  From root kṛ (to do) + -ya suffix
  Root: kṛ (class 8)
• niryoga – accomplishment, conclusion, appointment
  noun (masculine)
  From nir + root yuj
  Prefix: nir
  Root: yuj (class 7)

प्रमाणम् (pramāṇam) - the ultimate authority or decisive factor for success in this mission (authority, proof, standard, measure)

(noun)

Nominative, neuter, singular of pramāṇa

pramāṇa - measure, standard, authority, proof

हरिसत्तम (harisattama) - O Hanuman, best among the Vanaras (O best of monkeys, O best among heroes)

(adjective)

Vocative, masculine, singular of harisattama

harisattama - best of monkeys, best of lions

Superlative of Hari (monkey/lion)

Compound type : tatpuruṣa (hari+sattama)

• hari – monkey, lion, Viṣṇu, sun
  noun (masculine)
• sattama – best, most excellent
  adjective (masculine)
  Superlative suffix -tama

तस्य (tasya) - therefore (of that, for that reason, therefore)

(indeclinable)

Note: Used adverbially to mean 'therefore' or 'for that reason'.

चिन्तय (cintaya) - consider, think, reflect

(verb)

2nd person , singular, active, imperative (lot) of cint

From root cit (to perceive, know) with a causative suffix -aya

Root: cit (class 10)

यः (yaḥ) - which, who

(pronoun)

Nominative, masculine, singular of yad

yad - which, who

यत्नः (yatnaḥ) - effort, exertion, attempt

(noun)

Nominative, masculine, singular of yatna

yatna - effort, exertion, attempt

From root yat (to strive)

Root: yat (class 1)

दुःखक्षयकरः (duḥkhakṣayakaraḥ) - that which brings about the cessation of sorrow (Sita's suffering) (causing the destruction of sorrow, sorrow-destroying)

(adjective)

Nominative, masculine, singular of duḥkhakṣayakara

duḥkhakṣayakara - causing the destruction of sorrow

Compound type : tatpuruṣa (duḥkha+kṣaya+kara)

• duḥkha – suffering, pain, sorrow
  noun (neuter)
• kṣaya – destruction, decay, end, cessation
  noun (masculine)
  From root kṣi (to destroy)
  Root: kṣi (class 5)
• kara – making, causing, performing
  adjective (masculine)
  Suffix -kara, from root kṛ (to do)
  Root: kṛ (class 8)

भवेत् (bhavet) - may it be, should be, would be

(verb)

3rd person , singular, active, optative (vidhiliṅ) of bhū

Root: bhū (class 1)