महाभारतः mahābhārataḥ - book-7, chapter-162, verse-16

आर्तनादस्वनवतीं पताकावस्त्रफेनिलाम् ।
नदीं प्रावर्तयन्वीराः परलोकप्रवाहिनीम् ॥१६॥

16. ārtanādasvanavatīṁ patākāvastraphenilām ,
nadīṁ prāvartayanvīrāḥ paralokapravāhinīm.

16. ārtanādasvanavatīm patākāvastraphenilām
nadīm prāvartayan vīrāḥ paralokapravāhinīm

16. vīrāḥ ārtanādasvanavatīm patākāvastraphenilām
paralokapravāhinīm nadīm prāvartayan

16. The heroes caused this river to flow, a river marked by the sound of cries of distress, foamy with banners and garments, and flowing towards the other world.

Words meanings summery:

• आर्तनादस्वनवतीम् (ārtanādasvanavatīm) - having the sound of cries of distress

• पताकावस्त्रफेनिलाम् (patākāvastraphenilām) - foamy with banners and clothes

• नदीम् (nadīm) - river

• प्रावर्तयन् (prāvartayan) - they caused to flow; they set in motion

• वीराः (vīrāḥ) - heroes, brave warriors

• परलोकप्रवाहिनीम् (paralokapravāhinīm) - flowing towards the other world

Words meanings and morphology

आर्तनादस्वनवतीम् (ārtanādasvanavatīm) - having the sound of cries of distress

(adjective)

Accusative, feminine, singular of ārtanādasvanavatī

ārtanādasvanavatī - having the sound of cries of distress

Compound type : bahuvrīhi (ārta+nāda+svana+vat)

• ārta – distressed, afflicted
  adjective (masculine)
  Past Passive Participle
  Root: ṛ (class 3)
• nāda – cry, sound, roar
  noun (masculine)
  Root: nad (class 1)
• svana – sound, noise
  noun (masculine)
  Root: svan (class 1)
• vat – possessing, having (suffix)
  suffix
  Taddhita suffix indicating possession

पताकावस्त्रफेनिलाम् (patākāvastraphenilām) - foamy with banners and clothes

(adjective)

Accusative, feminine, singular of patākāvastraphenilā

patākāvastraphenilā - foamy with banners and clothes

Compound type : tatpuruṣa (patākā+vastra+phenila)

• patākā – banner, flag
  noun (feminine)
• vastra – garment, cloth
  noun (neuter)
• phenila – foamy, frothy
  adjective (masculine)

नदीम् (nadīm) - river

(noun)

Accusative, feminine, singular of nadī

nadī - river

प्रावर्तयन् (prāvartayan) - they caused to flow; they set in motion

(verb)

3rd person , plural, active, past imperfect (laṅ) of pravṛt

Causative imperfect, 3rd person plural

Causative form of vṛt is vartayati; imperfect is prāvartayat (singular) or prāvartayan (plural).

Prefix: pra

Root: vṛt (class 1)

वीराः (vīrāḥ) - heroes, brave warriors

(noun)

Nominative, masculine, plural of vīra

vīra - hero, brave, warrior

परलोकप्रवाहिनीम् (paralokapravāhinīm) - flowing towards the other world

(adjective)

Accusative, feminine, singular of paralokapravāhinī

paralokapravāhinī - flowing towards the other world

Compound type : tatpuruṣa (paraloka+pravāhin)

• paraloka – other world, afterlife
  noun (masculine)
• pravāhin – flowing, current, stream
  adjective (masculine)
  Prefix: pra
  Root: vah (class 1)