महाभारतः mahābhārataḥ - book-6, chapter-111, verse-5

यथाप्रतिज्ञं कौरव्यः स चापि समितिंजयः ।
पार्थानामकरोद्भीष्मः सततं समितिक्षयम् ॥५॥

5. yathāpratijñaṁ kauravyaḥ sa cāpi samitiṁjayaḥ ,
pārthānāmakarodbhīṣmaḥ satataṁ samitikṣayam.

5. yathāpratijñam kauravyaḥ saḥ ca api samitiṃjayaḥ
pārthānām akarot bhīṣmaḥ satatam samitikṣayam

5. kauravyaḥ,
samitiṃjayaḥ saḥ bhīṣmaḥ ca api yathāpratijñam pārthānām satatam samitikṣayam akarot

5. O descendant of Kuru (kauravya), that Bhishma, the conqueror in battle (samitiṃjaya), constantly caused the destruction of the Pandavas (Pārthānām) in battle, in accordance with his vow.

Words meanings summery:

• यथाप्रतिज्ञम् (yathāpratijñam) - according to the vow, as vowed

• कौरव्यः (kauravyaḥ) - O Dhritarashtra (O descendant of Kuru)

• सः (saḥ) - that (Bhishma) (he, that)

• च (ca) - and, also

• अपि (api) - also, even, too

• समितिंजयः (samitiṁjayaḥ) - conqueror in battle (conqueror in battle, victorious in assemblies)

• पार्थानाम् (pārthānām) - of the Pandavas (Pārthānām) (of the sons of Pritha)

• अकरोत् (akarot) - he did, he made, he caused

• भीष्मः (bhīṣmaḥ) - Bhishma

• सततम् (satatam) - constantly, always, continually

• समितिक्षयम् (samitikṣayam) - destruction in battle, loss in battle

Words meanings and morphology

यथाप्रतिज्ञम् (yathāpratijñam) - according to the vow, as vowed

(indeclinable)

Avyayībhāva compound

Compound type : avyayībhāva (yathā+pratijñā)

• yathā – as, like, according to
  indeclinable
• pratijñā – promise, vow, agreement
  noun (feminine)
  From prati- + √jñā (to know)
  Prefix: prati
  Root: jñā (class 9)

कौरव्यः (kauravyaḥ) - O Dhritarashtra (O descendant of Kuru)

(proper noun)

Vocative, masculine, singular of kauravya

kauravya - a descendant of Kuru, belonging to the Kurus

Formed with suffix -ya from Kuru.

सः (saḥ) - that (Bhishma) (he, that)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

च (ca) - and, also

(indeclinable)

अपि (api) - also, even, too

(indeclinable)

समितिंजयः (samitiṁjayaḥ) - conqueror in battle (conqueror in battle, victorious in assemblies)

(adjective)

Nominative, masculine, singular of samitiṃjaya

samitiṁjaya - victorious in battle, conqueror of assemblies

Compound type : tatpurusha (samiti+jaya)

• samiti – assembly, battle, encounter
  noun (feminine)
  From sam- + √i (to go)
  Prefix: sam
  Root: i (class 2)
• jaya – victory, conqueror (as suffix)
  noun (masculine)

पार्थानाम् (pārthānām) - of the Pandavas (Pārthānām) (of the sons of Pritha)

(proper noun)

Genitive, masculine, plural of pārtha

pārtha - son of Pritha (Kunti), Arjuna, any of the Pandavas

From Pṛthā (Kunti) + -a (suffix).

अकरोत् (akarot) - he did, he made, he caused

(verb)

3rd person , singular, active, aorist (luṅ) of kṛ

Aorist (lun)

3rd person singular, active voice.

Root: kṛ (class 8)

भीष्मः (bhīṣmaḥ) - Bhishma

(proper noun)

Nominative, masculine, singular of bhīṣma

bhīṣma - Bhishma (a proper name), terrible, dreadful

सततम् (satatam) - constantly, always, continually

(indeclinable)

Adverbial form.

समितिक्षयम् (samitikṣayam) - destruction in battle, loss in battle

(noun)

Accusative, masculine, singular of samitikṣaya

samitikṣaya - destruction of armies, loss in battle

Compound type : tatpurusha (samiti+kṣaya)

• samiti – assembly, battle, encounter
  noun (feminine)
  From sam- + √i (to go)
  Prefix: sam
  Root: i (class 2)
• kṣaya – destruction, decay, loss
  noun (masculine)