महाभारतः mahābhārataḥ - book-5, chapter-163, verse-10

मकरा इव राजेन्द्र समुद्धततरङ्गिणीम् ।
गङ्गां विक्षोभयिष्यन्ति पार्थानां युधि वाहिनीम् ॥१०॥

10. makarā iva rājendra samuddhatataraṅgiṇīm ,
gaṅgāṁ vikṣobhayiṣyanti pārthānāṁ yudhi vāhinīm.

10. makarāḥ iva rājendra samuddhatataraṅgiṇīm
gaṅgām vikṣobhayiṣyanti pārthānām yudhi vāhinīm

10. rājendra makarāḥ iva samuddhatataraṅgiṇīm
gaṅgām pārthānām vāhinīm yudhi vikṣobhayiṣyanti

10. O king of kings, just as crocodiles stir up the Gaṅgā river with its greatly agitated waves, so too will they agitate the army of the Pārthas (Pāṇḍavas) in battle.

Words meanings summery:

• मकराः (makarāḥ) - crocodiles, sea-monsters

• इव (iva) - like, as if

• राजेन्द्र (rājendra) - O king of kings, O best of kings

• समुद्धततरङ्गिणीम् (samuddhatataraṅgiṇīm) - having greatly agitated waves, with violently rising waves

• गङ्गाम् (gaṅgām) - the Gaṅgā river

• विक्षोभयिष्यन्ति (vikṣobhayiṣyanti) - they will agitate, they will disturb greatly

• पार्थानाम् (pārthānām) - of the Pārthas (Pāṇḍavas)

• युधि (yudhi) - in battle, in war

• वाहिनीम् (vāhinīm) - the army

Words meanings and morphology

मकराः (makarāḥ) - crocodiles, sea-monsters

(noun)

Nominative, masculine, plural of makara

makara - crocodile, sea-monster, a mythical aquatic creature

इव (iva) - like, as if

(indeclinable)

राजेन्द्र (rājendra) - O king of kings, O best of kings

(noun)

Vocative, masculine, singular of rājendra

rājendra - chief of kings, king of kings (Indra among kings)

Compound type : tatpuruṣa (rājan+indra)

• rājan – king, sovereign
  noun (masculine)
• indra – Indra (name of a deity), chief, best
  noun (masculine)

समुद्धततरङ्गिणीम् (samuddhatataraṅgiṇīm) - having greatly agitated waves, with violently rising waves

(adjective)

Accusative, feminine, singular of samuddhatataraṅgiṇī

samuddhatataraṅgiṇī - having violently agitated waves

Compound type : bahuvrīhi (samuddhata+taraṅgiṇī)

• samuddhata – greatly agitated, violently raised, lofty
  adjective
  Past Passive Participle
  From √dhṛ (to hold, raise) with upasargas sam and ut
  Prefixes: sam+ut
  Root: dhṛ (class 1)
• taraṅgiṇī – river (literally 'having waves')
  noun (feminine)
  Derived from 'taraṅga' (wave)

गङ्गाम् (gaṅgām) - the Gaṅgā river

(proper noun)

Accusative, feminine, singular of gaṅgā

gaṅgā - the river Ganges

विक्षोभयिष्यन्ति (vikṣobhayiṣyanti) - they will agitate, they will disturb greatly

(verb)

3rd person , plural, active, future (lṛṭ) of vikṣobhaya

Causative

Causative stem from √kṣubh (to tremble, be agitated) with upasarga vi

Prefix: vi

Root: kṣubh (class 1)

पार्थानाम् (pārthānām) - of the Pārthas (Pāṇḍavas)

(proper noun)

Genitive, masculine, plural of pārtha

pārtha - son of Pṛthā (Kuntī), an epithet for the Pāṇḍavas

युधि (yudhi) - in battle, in war

(noun)

Locative, feminine, singular of yudh

yudh - battle, war, fight

वाहिनीम् (vāhinīm) - the army

(noun)

Accusative, feminine, singular of vāhinī

vāhinī - army, host; river, stream