महाभारतः mahābhārataḥ - book-6, chapter-99, verse-35

शीर्षोपलसमाकीर्णा हस्तिग्राहसमाकुला ।
कवचोष्णीषफेनाढ्या धनुर्द्वीपासिकच्छपा ॥३५॥

35. śīrṣopalasamākīrṇā hastigrāhasamākulā ,
kavacoṣṇīṣaphenāḍhyā dhanurdvīpāsikacchapā.

35. śīrṣopalasamākīrṇā hastigrāhasamākulā
kavacoṣṇīṣaphenāḍhyā dhanurdvīpāsikacchapā

35. śīrṣopalasamākīrṇā hastigrāhasamākulā
kavacoṣṇīṣaphenāḍhyā dhanurdvīpāsikacchapā

35. It is strewn with skulls as rocks, agitated by elephants as crocodiles, rich with armor and turbans as its foam, and whose islands are bows and tortoises are swords.

Words meanings summery:

• शीर्षोपलसमाकीर्णा (śīrṣopalasamākīrṇā) - strewn with skulls as stones

• हस्तिग्राहसमाकुला (hastigrāhasamākulā) - agitated by elephants as crocodiles

• कवचोष्णीषफेनाढ्या (kavacoṣṇīṣaphenāḍhyā) - rich with armor and turbans as foam

• धनुर्द्वीपासिकच्छपा (dhanurdvīpāsikacchapā) - whose islands are bows and tortoises are swords

Words meanings and morphology

शीर्षोपलसमाकीर्णा (śīrṣopalasamākīrṇā) - strewn with skulls as stones

(adjective)

Nominative, feminine, singular of śīrṣopalasamākīrṇa

śīrṣopalasamākīrṇa - (a river) strewn/covered with skulls as stones

Compound type : Bahuvrihi (śīrṣopala+samākīrṇa)

• śīrṣopala – skulls as stones
  noun (masculine)
• samākīrṇa – strewn, covered, filled with, scattered
  adjective
  Past Passive Participle
  from root kṛ (to scatter) with prefixes sam- and ā-
  Prefixes: sam+ā
  Root: kṛ (class 6)

Note: Adjective modifying an implied 'river' (nadī).

हस्तिग्राहसमाकुला (hastigrāhasamākulā) - agitated by elephants as crocodiles

(adjective)

Nominative, feminine, singular of hastigrāhasamākula

hastigrāhasamākula - (a river) agitated by elephants resembling crocodiles

Compound type : Bahuvrihi (hastigrāha+samākula)

• hastigrāha – elephants as crocodiles
  noun (masculine)
• samākula – filled with, agitated by, confused, crowded
  adjective
  from root kula (to collect) with prefixes sam- and ā-
  Prefixes: sam+ā
  Root: kul (class 1)

Note: Adjective modifying an implied 'river' (nadī).

कवचोष्णीषफेनाढ्या (kavacoṣṇīṣaphenāḍhyā) - rich with armor and turbans as foam

(adjective)

Nominative, feminine, singular of kavacoṣṇīṣaphenāḍhya

kavacoṣṇīṣaphenāḍhya - (a river) rich in armor and turbans as foam

Compound type : Bahuvrihi (kavacoṣṇīṣaphena+āḍhya)

• kavaca – armor, mail
  noun (neuter)
• uṣṇīṣa – turban, head-dress
  noun (masculine)
• phena – foam, froth
  noun (masculine)
• āḍhya – rich in, abounding in, opulent
  adjective
  Prefix: ā

Note: Adjective modifying an implied 'river' (nadī).

धनुर्द्वीपासिकच्छपा (dhanurdvīpāsikacchapā) - whose islands are bows and tortoises are swords

(adjective)

Nominative, feminine, singular of dhanurdvīpāsikacchapa

dhanurdvīpāsikacchapa - (a river) whose islands are bows and whose tortoises are swords

Compound type : Bahuvrihi (dhanurdvīpa+asikacchapa)

• dhanus – bow, arc
  noun (neuter)
• dvīpa – island, continent
  noun (masculine)
• asi – sword, knife
  noun (masculine)
• kacchapa – tortoise, turtle
  noun (masculine)

Note: Adjective modifying an implied 'river' (nadī).