महाभारतः mahābhārataḥ - book-5, chapter-158, verse-10

अशक्तेन च यच्छप्तं भीमसेनेन पाण्डव ।
दुःशासनस्य रुधिरं पीयतां यदि शक्यते ॥१०॥

10. aśaktena ca yacchaptaṁ bhīmasenena pāṇḍava ,
duḥśāsanasya rudhiraṁ pīyatāṁ yadi śakyate.

10. aśaktena ca yat śaptam bhīmasenena pāṇḍava
| duḥśāsanasya rudhiram pīyatām yadi śakyate

10. pāṇḍava,
ca yat aśaktena bhīmasenena śaptam,
yadi śakyate (tat),
duḥśāsanasya rudhiram pīyatām

10. O Pāṇḍava, and what was sworn (śapta) by Bhīmasena when he was helpless (aśakta)—let Duḥśāsana's blood be drunk if it is possible.

Words meanings summery:

• अशक्तेन (aśaktena) - by Bhīmasena when he was helpless and unable to prevent Draupadī's humiliation. (by the helpless, by the unable one)

• च (ca) - and, also

• यत् (yat) - refers to the vow/oath (what, which)

• शप्तम् (śaptam) - the oath or vow sworn by Bhīmasena (sworn, cursed)

• भीमसेनेन (bhīmasenena) - by Bhīmasena

• पाण्डव (pāṇḍava) - Refers to Yudhiṣṭhira or one of the Pāṇḍavas. (O son of Pāṇḍu, O Pāṇḍava)

• दुःशासनस्य (duḥśāsanasya) - of Duḥśāsana

• रुधिरम् (rudhiram) - blood

• पीयताम् (pīyatām) - let it be drunk

• यदि (yadi) - if

• शक्यते (śakyate) - it is possible, it is able

Words meanings and morphology

अशक्तेन (aśaktena) - by Bhīmasena when he was helpless and unable to prevent Draupadī's humiliation. (by the helpless, by the unable one)

(adjective)

Instrumental, masculine, singular of aśakta

aśakta - helpless, unable, powerless

Negative compound (nañ-tatpuruṣa) of 'a' (not) and 'śakta' (able).

Compound type : nañ-tatpuruṣa (a+śakta)

• a – not, un-, non-
  indeclinable
• śakta – able, capable, powerful
  adjective (masculine)
  Past Passive Participle
  Derived from the root √śak (to be able).
  Root: √śak (class 5)

च (ca) - and, also

(indeclinable)

यत् (yat) - refers to the vow/oath (what, which)

(pronoun)

Accusative, neuter, singular of yat

yat - which, what, that (relative pronoun)

शप्तम् (śaptam) - the oath or vow sworn by Bhīmasena (sworn, cursed)

(adjective)

Nominative, neuter, singular of śapta

śapta - cursed, sworn, vowed

Past Passive Participle

Derived from the root √śap (to curse, swear).

Root: √śap (class 1)

भीमसेनेन (bhīmasenena) - by Bhīmasena

(proper noun)

Instrumental, masculine, singular of bhīmasena

bhīmasena - Bhīmasena (one of the Pāṇḍavas)

पाण्डव (pāṇḍava) - Refers to Yudhiṣṭhira or one of the Pāṇḍavas. (O son of Pāṇḍu, O Pāṇḍava)

(proper noun)

Vocative, masculine, singular of pāṇḍava

pāṇḍava - descendant of Pāṇḍu, a Pāṇḍava

A patronymic formed from Pāṇḍu.

दुःशासनस्य (duḥśāsanasya) - of Duḥśāsana

(proper noun)

Genitive, masculine, singular of duḥśāsana

duḥśāsana - Duḥśāsana (a son of Dhṛtarāṣṭra)

रुधिरम् (rudhiram) - blood

(noun)

Nominative, neuter, singular of rudhira

rudhira - blood

पीयताम् (pīyatām) - let it be drunk

(verb)

3rd person , singular, passive, imperative (loṭ) of √pā

Root: √pā (class 1)

यदि (yadi) - if

(indeclinable)

शक्यते (śakyate) - it is possible, it is able

(verb)

3rd person , singular, passive, present (lat) of √śak

Root: √śak (class 5)

Note: Used impersonally here (it is possible).