महाभारतः mahābhārataḥ - book-3, chapter-267, verse-19

नलनीलाङ्गदक्राथमैन्दद्विविदपालिता ।
ययौ सुमहती सेना राघवस्यार्थसिद्धये ॥१९॥

19. nalanīlāṅgadakrāthamaindadvividapālitā ,
yayau sumahatī senā rāghavasyārthasiddhaye.

19. nalanīlāṅgadakrāthamaindadvividapālitā
yayau sumahatī senā rāghavasya arthasiddhaye

19. The mighty army, led by Nala, Nīla, Aṅgada, Krātha, Mainda, and Dvivida, proceeded to achieve Rāghava's (Rāma's) objective.

Words meanings summery:

• नलनीलाङ्गदक्राथमैन्दद्विविदपालिता (nalanīlāṅgadakrāthamaindadvividapālitā) - led by Nala, Nīla, Aṅgada, Krātha, Mainda, and Dvivida

• ययौ (yayau) - went, proceeded

• सुमहती (sumahatī) - very great, mighty

• सेना (senā) - army, host

• राघवस्य (rāghavasya) - of Rāghava, of Rāma

• अर्थसिद्धये (arthasiddhaye) - for the accomplishment of Rāma's objective (for the accomplishment of the purpose/aim, for success)

Words meanings and morphology

नलनीलाङ्गदक्राथमैन्दद्विविदपालिता (nalanīlāṅgadakrāthamaindadvividapālitā) - led by Nala, Nīla, Aṅgada, Krātha, Mainda, and Dvivida

(adjective)

Nominative, feminine, singular of nalanīlāṅgadakrāthamaindadvividapālita

nalanīlāṅgadakrāthamaindadvividapālita - led/protected/governed by Nala, Nīla, Aṅgada, Krātha, Mainda, and Dvivida

Past Passive Participle (pālita from √pāl)

Derived from √pāl (to protect) with suffix -ta, combined in a Bahuvrīhi compound with proper nouns.

Compound type : Bahuvrīhi (nala+nīla+aṅgada+krātha+mainda+dvivida+pālita)

• nala – Nala (proper name)
  proper noun (masculine)
• nīla – Nīla (proper name)
  proper noun (masculine)
• aṅgada – Aṅgada (proper name)
  proper noun (masculine)
• krātha – Krātha (proper name)
  proper noun (masculine)
• mainda – Mainda (proper name)
  proper noun (masculine)
• dvivida – Dvivida (proper name)
  proper noun (masculine)
• pālita – protected, governed, led
  adjective (masculine)
  Past Passive Participle
  From root √pāl (to protect) with suffix -ta.
  Root: pāl (class 1)

Note: Qualifies 'senā'.

ययौ (yayau) - went, proceeded

(verb)

3rd person , singular, active, perfect (liṭ) of yā

Perfect (liṭ) 3rd singular

From root √yā.

Root: yā (class 2)

सुमहती (sumahatī) - very great, mighty

(adjective)

Nominative, feminine, singular of sumahat

sumahat - very great, huge, mighty

Prefix su- (very, good) + mahat (great).

Compound type : Praadi-samāsa (su+mahat)

• su – good, well, very
  indeclinable
• mahat – great, large, big, mighty
  adjective (masculine)
  Root √mah (to be great) + -at suffix.
  Root: mah (class 1)

Note: Qualifies 'senā'.

सेना (senā) - army, host

(noun)

Nominative, feminine, singular of senā

senā - army, host, forces

Note: Subject of the sentence.

राघवस्य (rāghavasya) - of Rāghava, of Rāma

(proper noun)

Genitive, masculine, singular of rāghava

rāghava - descendant of Raghu, Rāma

Derived from Raghu with aṇ suffix.

Note: Indicates possession or relation.

अर्थसिद्धये (arthasiddhaye) - for the accomplishment of Rāma's objective (for the accomplishment of the purpose/aim, for success)

(noun)

Dative, feminine, singular of arthasiddhi

arthasiddhi - accomplishment of purpose, success, prosperity

Compound of artha (purpose) and siddhi (accomplishment).

Compound type : Tatpuruṣa (artha+siddhi)

• artha – purpose, object, meaning, wealth, goal
  noun (masculine)
• siddhi – accomplishment, success, perfection, supernatural power
  noun (feminine)
  From root √sidh (to succeed) + -ti suffix.
  Root: sidh (class 1)

Note: Indicates purpose.