महाभारतः mahābhārataḥ - book-7, chapter-57, verse-72

ततस्तौ रुद्रमाहात्म्याद्धित्वा रूपं महोरगौ ।
धनुर्बाणश्च शत्रुघ्नं तद्द्वंद्वं समपद्यत ॥७२॥

72. tatastau rudramāhātmyāddhitvā rūpaṁ mahoragau ,
dhanurbāṇaśca śatrughnaṁ taddvaṁdvaṁ samapadyata.

72. tataḥ tau rudramāhātmyāt hitvā rūpam mahoragau
dhanurbāṇaḥ ca śatrughnam tat dvandvam samapadyata

72. tataḥ rudramāhātmyāt tau mahoragau rūpam hitvā
tat śatrughnam dvandvam dhanurbāṇaḥ ca samapadyata

72. Then, due to the glory of Rudra (Śiva), those two (Krishna and Arjuna) abandoned their form as great serpents (mahoragau). That foe-slaying (śatrughna) pair (dvandvam) then transformed into a bow and arrow.

Words meanings summery:

• ततः (tataḥ) - then, thence, afterwards

• तौ (tau) - those two

• रुद्रमाहात्म्यात् (rudramāhātmyāt) - due to the glory of Rudra (Śiva) (from the greatness/glory of Rudra)

• हित्वा (hitvā) - having abandoned, having left

• रूपम् (rūpam) - form, appearance

• महोरगौ (mahoragau) - (of) great serpents (referring to the form Krishna and Arjuna had taken) ((of) great serpents)

• धनुर्बाणः (dhanurbāṇaḥ) - bow and arrow

• च (ca) - and

• शत्रुघ्नम् (śatrughnam) - foe-slaying, enemy-destroying

• तत् (tat) - that

• द्वन्द्वम् (dvandvam) - the pair (of bow and arrow) (pair, couple)

• समपद्यत (samapadyata) - transformed into (became, occurred, was produced, resulted in)

Words meanings and morphology

ततः (tataḥ) - then, thence, afterwards

(indeclinable)

तौ (tau) - those two

(pronoun)

Nominative, masculine, dual of tad

tad - that, those

Note: Refers to Krishna and Arjuna.

रुद्रमाहात्म्यात् (rudramāhātmyāt) - due to the glory of Rudra (Śiva) (from the greatness/glory of Rudra)

(noun)

Ablative, neuter, singular of rudramāhātmya

rudramāhātmya - the greatness/glory of Rudra

Compound type : Tatpurusha (rudra+māhātmya)

• rudra – Rudra (a Vedic deity, later identified with Śiva)
  proper noun (masculine)
• māhātmya – greatness, glory, majesty
  noun (neuter)
  Derived from mahātman (great-souled)

Note: Denotes cause.

हित्वा (hitvā) - having abandoned, having left

(indeclinable)

Absolutive (gerund)

From root hā (to abandon) + tvā suffix

Root: hā (class 3)

रूपम् (rūpam) - form, appearance

(noun)

Accusative, neuter, singular of rūpa

rūpa - form, shape, appearance

Note: Object of hitvā.

महोरगौ (mahoragau) - (of) great serpents (referring to the form Krishna and Arjuna had taken) ((of) great serpents)

(noun)

Accusative, masculine, dual of mahoraga

mahoraga - great serpent

Compound type : Karmadharaya (mahā+uraga)

• mahā – great, large
  adjective (masculine)
• uraga – serpent, snake (lit. 'moving on the chest')
  noun (masculine)

Note: Modifies rūpam in apposition.

धनुर्बाणः (dhanurbāṇaḥ) - bow and arrow

(noun)

Nominative, masculine, singular of dhanurbāṇa

dhanurbāṇa - bow and arrow

Compound type : Dvandva (dhanus+bāṇa)

• dhanus – bow
  noun (neuter)
• bāṇa – arrow
  noun (masculine)

Note: Subject of samapadyata (as part of the transformed dvandvam).

च (ca) - and

(indeclinable)

शत्रुघ्नम् (śatrughnam) - foe-slaying, enemy-destroying

(adjective)

Nominative, neuter, singular of śatrughna

śatrughna - slayer of enemies, foe-slaying

Derived from śatru (enemy) + han (to strike, slay)

Compound type : Upapada Tatpurusha (śatru+ghna)

• śatru – enemy, foe
  noun (masculine)
• ghna – killing, destroying, slayer
  adjective (masculine)
  Derived from root han (to strike, slay)
  Root: han (class 2)

Note: Agrees with dvandvam.

तत् (tat) - that

(pronoun)

Nominative, neuter, singular of tad

tad - that

द्वन्द्वम् (dvandvam) - the pair (of bow and arrow) (pair, couple)

(noun)

Nominative, neuter, singular of dvandva

dvandva - pair, couple, duality

Note: Subject of samapadyata.

समपद्यत (samapadyata) - transformed into (became, occurred, was produced, resulted in)

(verb)

3rd person , singular, middle, imperfect (Laṅ) of sampad

Imperfect

Root pad with prefix sam-a. 3rd person singular middle imperfect.

Prefixes: sam+a

Root: pad (class 4)

Note: Its subject is tat dvandvam.