महाभारतः mahābhārataḥ - book-13, chapter-69, verse-3

प्रयत्नं तत्र कुर्वाणास्तस्मात्कूपाज्जलार्थिनः ।
श्रमेण महता युक्तास्तस्मिंस्तोये सुसंवृते ॥३॥

3. prayatnaṁ tatra kurvāṇāstasmātkūpājjalārthinaḥ ,
śrameṇa mahatā yuktāstasmiṁstoye susaṁvṛte.

3. prayatnam tatra kurvāṇāḥ tasmāt kūpāt jalārthinaḥ
śrameṇa mahatā yuktāḥ tasmin toye susaṃvṛte

3. jalārthinaḥ tasmāt kūpāt tatra prayatnam kurvāṇāḥ
tasmin susaṃvṛte toye mahatā śrameṇa yuktāḥ

3. Those seeking water, making efforts at that well, were engaged in great labor, for the water within it was completely concealed.

Words meanings summery:

• प्रयत्नम् (prayatnam) - effort, exertion, endeavor

• तत्र (tatra) - at that well (there, in that place, in that case)

• कुर्वाणाः (kurvāṇāḥ) - doing, making, performing

• तस्मात् (tasmāt) - from that (well) (from that, therefore)

• कूपात् (kūpāt) - from a well, out of a well

• जलार्थिनः (jalārthinaḥ) - those seeking water, desirous of water

• श्रमेण (śrameṇa) - by labor, with effort, by toil

• महता (mahatā) - by great, with great, by mighty

• युक्ताः (yuktāḥ) - engaged in (great labor) (joined, endowed with, engaged in, connected, associated)

• तस्मिन् (tasmin) - in that water (in that, on that)

• तोये (toye) - in water

• सुसंवृते (susaṁvṛte) - well-covered, well-concealed, well-enclosed

Words meanings and morphology

प्रयत्नम् (prayatnam) - effort, exertion, endeavor

(noun)

Accusative, masculine, singular of prayatna

prayatna - effort, exertion, endeavor, attempt

From pra- √yat (to strive)

Prefix: pra

Root: yat (class 1)

तत्र (tatra) - at that well (there, in that place, in that case)

(indeclinable)

From pronominal stem tad + suffix -tra

कुर्वाणाः (kurvāṇāḥ) - doing, making, performing

(participle)

Nominative, masculine, plural of kurvāṇa

kurvāṇa - doing, making, performing

Present Middle Participle

From √kṛ (to do) + śānac (Middle Present Participle suffix)

Root: kṛ (class 8)

तस्मात् (tasmāt) - from that (well) (from that, therefore)

(pronoun)

Ablative, masculine, singular of tad

tad - that, he, she, it

Note: Refers to the well.

कूपात् (kūpāt) - from a well, out of a well

(noun)

Ablative, masculine, singular of kūpa

kūpa - well, pit, hole

जलार्थिनः (jalārthinaḥ) - those seeking water, desirous of water

(adjective)

Nominative, masculine, plural of jalārthin

jalārthin - desirous of water, seeking water

Compound of jala and arthin

Compound type : Tatpurusha (jala+arthin)

• jala – water
  noun (neuter)
• arthin – desirous of, seeking, requesting
  adjective (masculine)
  From √arth (to ask, request) + -in suffix
  Root: arth (class 10)

Note: Qualifies the implied 'people' or 'they'.

श्रमेण (śrameṇa) - by labor, with effort, by toil

(noun)

Instrumental, masculine, singular of śrama

śrama - labor, toil, exertion, fatigue

From √śram (to be weary)

Root: śram (class 4)

महता (mahatā) - by great, with great, by mighty

(adjective)

Instrumental, masculine, singular of mahat

mahat - great, large, mighty, important

Note: Agrees with śrameṇa.

युक्ताः (yuktāḥ) - engaged in (great labor) (joined, endowed with, engaged in, connected, associated)

(participle)

Nominative, masculine, plural of yukta

yukta - joined, yoked, united, applied, engaged, diligent

Past Passive Participle

From √yuj (to join, to unite) + kta suffix

Root: yuj (class 7)

Note: Agrees with jalārthinaḥ (implied subjects).

तस्मिन् (tasmin) - in that water (in that, on that)

(pronoun)

Locative, neuter, singular of tad

tad - that, he, she, it

Note: Refers to the water.

तोये (toye) - in water

(noun)

Locative, neuter, singular of toya

toya - water

From √tu (to swell, to be strong)

Root: tu (class 2)

सुसंवृते (susaṁvṛte) - well-covered, well-concealed, well-enclosed

(adjective)

Locative, neuter, singular of susaṃvṛta

susaṁvṛta - well-covered, well-concealed, well-enclosed, well-hidden

Past Passive Participle (used as adjective)

Compound of su- (well) and saṃvṛta (covered). saṃvṛta from sam- √vṛ (to cover) + kta.

Compound type : Praadi-Tatpurusha (su+saṃvṛta)

• su – good, well, excellent
  indeclinable
• saṃvṛta – covered, concealed, enclosed, surrounded
  participle (neuter)
  Past Passive Participle
  From sam- √vṛ (to cover) + kta suffix
  Prefix: sam
  Root: vṛ (class 5)