महाभारतः mahābhārataḥ - book-3, chapter-229, verse-18

सेनाग्रं धार्तराष्ट्रस्य प्राप्तं द्वैतवनं सरः ।
प्रविशन्तं वनद्वारि गन्धर्वाः समवारयन् ॥१८॥

18. senāgraṁ dhārtarāṣṭrasya prāptaṁ dvaitavanaṁ saraḥ ,
praviśantaṁ vanadvāri gandharvāḥ samavārayan.

18. senāgram dhārtarāṣṭrasya prāptam dvaitavanam
saras praviśantam vanadvāri gandharvāḥ samavārayan

18. When the vanguard of Dhṛtarāṣṭra's army reached Dvaitavana lake and was entering the forest gate, the Gandharvas obstructed them.

Words meanings summery:

• सेनाग्रम् (senāgram) - the vanguard, the front of the army

• धार्तराष्ट्रस्य (dhārtarāṣṭrasya) - of Dhṛtarāṣṭra's son, of Duryodhana

• प्राप्तम् (prāptam) - having reached, attained

• द्वैतवनम् (dvaitavanam) - to Dvaitavana (forest of Dwaita)

• सरस् (saras) - lake, pond

• प्रविशन्तम् (praviśantam) - entering

• वनद्वारि (vanadvāri) - at the forest gate, in the forest entrance

• गन्धर्वाः (gandharvāḥ) - the Gandharvas

• समवारयन् (samavārayan) - they obstructed, they stopped

Words meanings and morphology

सेनाग्रम् (senāgram) - the vanguard, the front of the army

(noun)

Accusative, neuter, singular of senāgra

senāgra - vanguard, front of the army

Compound.

Compound type : ṣaṣṭhī-tatpuruṣa (senā+agra)

• senā – army, host
  noun (feminine)
• agra – front, tip, top
  noun (neuter)

Note: Object of 'samavārayan'.

धार्तराष्ट्रस्य (dhārtarāṣṭrasya) - of Dhṛtarāṣṭra's son, of Duryodhana

(proper noun)

Genitive, masculine, singular of dhārtarāṣṭra

dhārtarāṣṭra - son of Dhṛtarāṣṭra, a descendant of Dhṛtarāṣṭra (e.g., Duryodhana)

Patronymic from Dhṛtarāṣṭra.

Note: Qualifies 'senāgram'.

प्राप्तम् (prāptam) - having reached, attained

(adjective)

Accusative, neuter, singular of prāpta

prāpta - reached, obtained, arrived at

Past Passive Participle

From pra-√āp (to reach).

Prefix: pra

Root: āp (class 5)

द्वैतवनम् (dvaitavanam) - to Dvaitavana (forest of Dwaita)

(proper noun)

Accusative, neuter, singular of dvaitavana

dvaitavana - Dvaitavana (name of a forest)

Compound.

Compound type : tatpuruṣa (dvaita+vana)

• dvaita – twofold, duality, name of a sage
  proper noun (masculine)
• vana – forest, wood
  noun (neuter)

Note: Object of 'prāptam'.

सरस् (saras) - lake, pond

(noun)

Accusative, neuter, singular of saras

saras - lake, pond, water

Note: Object of 'prāptam'.

प्रविशन्तम् (praviśantam) - entering

(adjective)

Accusative, neuter, singular of praviśat

praviśat - entering, going into

Present Active Participle

From pra-√viś (to enter).

Prefix: pra

Root: viś (class 6)

वनद्वारि (vanadvāri) - at the forest gate, in the forest entrance

(noun)

Locative, neuter, singular of vanadvāra

vanadvāra - forest gate, entrance to the forest

Compound.

Compound type : ṣaṣṭhī-tatpuruṣa (vana+dvāra)

• vana – forest, wood
  noun (neuter)
• dvāra – door, gate, entrance
  noun (neuter)

Note: Location of entering.

गन्धर्वाः (gandharvāḥ) - the Gandharvas

(proper noun)

Nominative, masculine, plural of gandharva

gandharva - Gandharva (a celestial musician/demigod)

Note: Subject of 'samavārayan'.

समवारयन् (samavārayan) - they obstructed, they stopped

(verb)

3rd person , plural, active, past imperfect (laṅ) of samavāray

Imperfect active 3rd plural (causative)

Causative stem of sam-ava-√vṛ (to cover, stop).

Prefixes: sam+ava

Root: vṛ (class 5)