महाभारतः mahābhārataḥ - book-7, chapter-48, verse-10

तावुद्यतगदौ वीरावन्योन्यवधकाङ्क्षिणौ ।
भ्रातृव्यौ संप्रजह्राते पुरेव त्र्यम्बकान्तकौ ॥१०॥

10. tāvudyatagadau vīrāvanyonyavadhakāṅkṣiṇau ,
bhrātṛvyau saṁprajahrāte pureva tryambakāntakau.

10. tau udyatagadau vīrau anyonya-vadha-kāṅkṣiṇau
bhrātṛvyau samprajahrāte purā iva tryambaka-antakau

10. udyatagadau anyonya-vadha-kāṅkṣiṇau tau vīrau
bhrātṛvyau purā tryambaka-antakau iva samprajahrāte

10. Those two heroes, with raised maces, desiring each other's death, the two cousins, attacked each other, just as Shiva (Tryambaka) and Yama (Antaka) did in the past.

Words meanings summery:

• तौ (tau) - those two (Bhima and Duryodhana, implied) (those two)

• उद्यतगदौ (udyatagadau) - having raised maces, with maces lifted

• वीरौ (vīrau) - two heroes

• अन्योन्य-वध-काङ्क्षिणौ (anyonya-vadha-kāṅkṣiṇau) - desiring each other's death, eager to kill each other

• भ्रातृव्यौ (bhrātṛvyau) - two cousins, two enemies (especially from the same family)

• सम्प्रजह्राते (samprajahrāte) - they attacked, they fought, they struck

• पुरा (purā) - formerly, in the past, anciently

• इव (iva) - like, as, as if

• त्र्यम्बक-अन्तकौ (tryambaka-antakau) - Shiva and Yama, known for their fierce nature (Tryambaka (Shiva) and Antaka (Yama))

Words meanings and morphology

तौ (tau) - those two (Bhima and Duryodhana, implied) (those two)

(pronoun)

Nominative, masculine, dual of tad

tad - that

उद्यतगदौ (udyatagadau) - having raised maces, with maces lifted

(adjective)

Nominative, masculine, dual of udyatagada

udyatagada - having a raised mace

Compound type : bahuvrihi (udyata+gada)

• udyata – raised, lifted
  adjective
  Past Passive Participle
  from ud-yam (to raise)
  Prefix: ud
  Root: yam (class 1)
• gada – mace, club
  noun (masculine)

वीरौ (vīrau) - two heroes

(noun)

Nominative, masculine, dual of vīra

vīra - hero, warrior

अन्योन्य-वध-काङ्क्षिणौ (anyonya-vadha-kāṅkṣiṇau) - desiring each other's death, eager to kill each other

(adjective)

Nominative, masculine, dual of anyonyavadha-kāṅkṣin

anyonyavadha-kāṅkṣin - desiring mutual killing

Compound type : bahuvrihi (anyonyavadha+kāṅkṣin)

• anyonya – mutual, each other
  pronoun
• vadha – killing, slaughter
  noun (masculine)
  from han (to strike, kill)
  Root: han (class 2)
• kāṅkṣin – desiring, wishing
  adjective
  agent noun from root kāṅkṣ
  suffix -in
  Root: kāṅkṣ (class 1)

भ्रातृव्यौ (bhrātṛvyau) - two cousins, two enemies (especially from the same family)

(noun)

Nominative, masculine, dual of bhrātṛvya

bhrātṛvya - cousin, rival, enemy (esp. paternal cousin)

from bhrātṛ

सम्प्रजह्राते (samprajahrāte) - they attacked, they fought, they struck

(verb)

3rd person , dual, middle, perfect (Lit) of saṃpra-hṛ

Perfect

Prefixes: sam+pra

Root: hṛ (class 1)

पुरा (purā) - formerly, in the past, anciently

(indeclinable)

इव (iva) - like, as, as if

(indeclinable)

त्र्यम्बक-अन्तकौ (tryambaka-antakau) - Shiva and Yama, known for their fierce nature (Tryambaka (Shiva) and Antaka (Yama))

(proper noun)

Nominative, masculine, dual of tryambakāntaka

tryambakāntaka - Tryambaka and Antaka

Compound type : dvandva (tryambaka+antaka)

• tryambaka – having three eyes, an epithet of Shiva
  proper noun (masculine)
• antaka – the ender, destroyer, an epithet of Yama
  proper noun (masculine)
  from ant (to end)
  Root: ant (class 1)