महाभारतः mahābhārataḥ - book-3, chapter-270, verse-27

दूषणावरजौ चैव वज्रवेगप्रमाथिनौ ।
तौ त्वां बलेन महता सहितावनुयास्यतः ॥२७॥

27. dūṣaṇāvarajau caiva vajravegapramāthinau ,
tau tvāṁ balena mahatā sahitāvanuyāsyataḥ.

27. dūṣaṇa-avarajau ca eva vajra-vega-pramāthinau
tau tvām balena mahatā sahitau anuyāsyataḥ

27. Indeed, those two, the younger brothers of Dūṣaṇa, who possess the ability to crush with the speed of a thunderbolt, will accompany you with great strength.

Words meanings summery:

• दूषण-अवरजौ (dūṣaṇa-avarajau) - the two younger brothers of Dūṣaṇa

• च (ca) - and

• एव (eva) - indeed, just, only

• वज्र-वेग-प्रमाथिनौ (vajra-vega-pramāthinau) - the two crushing with thunderbolt-like speed/force

• तौ (tau) - Refers to the two younger brothers of Dūṣaṇa. (those two)

• त्वाम् (tvām) - Refers to Rāvaṇa. (you)

• बलेन (balena) - with strength, by force

• महता (mahatā) - great, mighty

• सहितौ (sahitau) - accompanied, together

• अनुयास्यतः (anuyāsyataḥ) - will follow

Words meanings and morphology

दूषण-अवरजौ (dūṣaṇa-avarajau) - the two younger brothers of Dūṣaṇa

(noun)

Nominative, masculine, dual of dūṣaṇāvaraja

dūṣaṇāvaraja - younger brother of Dūṣaṇa

Compound type : tatpuruṣa (dūṣaṇa+avaraja)

• dūṣaṇa – a proper name, Dūṣaṇa (a rākṣasa)
  proper noun (masculine)
  Root: duṣ (class 4)
• avaraja – younger brother, born after
  noun (masculine)
  a-vara-ja (born after, 'vara' here implies something like 'order' or 'sequence')
  Prefix: ava
  Root: jan (class 4)

च (ca) - and

(indeclinable)

एव (eva) - indeed, just, only

(indeclinable)

वज्र-वेग-प्रमाथिनौ (vajra-vega-pramāthinau) - the two crushing with thunderbolt-like speed/force

(adjective)

Nominative, masculine, dual of vajravegapramāthin

vajravegapramāthin - crushing with thunderbolt-like speed, subduing with the force of a thunderbolt

Derived from pramātha (crushing, destroying) + in (agent suffix)

Compound type : tatpuruṣa (vajra+vega+pramāthin)

• vajra – thunderbolt, diamond
  noun (masculine)
  Root: vaj
• vega – speed, force, impetus
  noun (masculine)
  From root vij- 'to tremble, move quickly'
  Root: vij (class 6)
• pramāthin – crushing, destroying, defeating, tormenting
  adjective (masculine)
  Agent noun from pramāth
  pr + math + ṇin (agent suffix)
  Prefix: pra
  Root: math (class 1)

Note: Adjective for dūṣaṇāvarajau and tau.

तौ (tau) - Refers to the two younger brothers of Dūṣaṇa. (those two)

(pronoun)

Nominative, masculine, dual of tad

tad - that, he, she, it

Note: Demonstrative pronoun.

त्वाम् (tvām) - Refers to Rāvaṇa. (you)

(pronoun)

Accusative, singular of yuṣmad

yuṣmad - you (plural and singular, 2nd person pronoun)

बलेन (balena) - with strength, by force

(noun)

Instrumental, neuter, singular of bala

bala - strength, power, force, army

Root: bal

महता (mahatā) - great, mighty

(adjective)

Instrumental, neuter, singular of mahat

mahat - great, large, important, mighty

Root: mah

Note: Agrees with balena.

सहितौ (sahitau) - accompanied, together

(adjective)

Nominative, masculine, dual of sahita

sahita - accompanied, joined, united, together with

Past Passive Participle

sam + dhā + kta (ppple suffix), with sandhi (dha -> hita)

Prefix: sam

Root: dhā (class 3)

अनुयास्यतः (anuyāsyataḥ) - will follow

(verb)

3rd person , dual, active, future (lṛṭ) of anuyā

Future Tense

anu + yā (root) + syati (future suffix for 3rd dual)

Prefix: anu

Root: yā (class 2)