महाभारतः mahābhārataḥ - book-2, chapter-28, verse-30

एवमुक्त्वा तु माद्रेयः कुशैरास्तीर्य मेदिनीम् ।
विधिवत्पुरुषव्याघ्रः पावकं प्रत्युपाविशत् ॥३०॥

30. evamuktvā tu mādreyaḥ kuśairāstīrya medinīm ,
vidhivatpuruṣavyāghraḥ pāvakaṁ pratyupāviśat.

30. evam uktvā tu mādreyaḥ kuśaiḥ āstīrya medinīm
vidhivat puruṣavyāghraḥ pāvakam prati upāviśat

30. Having spoken thus, the son of Madri (mādreya), a tiger among men (puruṣavyāghra), spread Kuśa grass on the ground and, following the prescribed rites, sat down facing Agni.

Words meanings summery:

• एवम् (evam) - thus, in this manner, so

• उक्त्वा (uktvā) - having said, having spoken

• तु (tu) - but, indeed, and

• माद्रेयः (mādreyaḥ) - Nakula (son of Madri) (son of Madri)

• कुशैः (kuśaiḥ) - with Kuśa grass

• आस्तीर्य (āstīrya) - having spread out

• मेदिनीम् (medinīm) - the earth, the ground

• विधिवत् (vidhivat) - according to rule, properly, ritually

• पुरुषव्याघ्रः (puruṣavyāghraḥ) - a distinguished man, the best of men (tiger among men, best of men)

• पावकम् (pāvakam) - to Agni (to the purifier, to Agni)

• प्रति (prati) - towards, against, facing

• उपाविशत् (upāviśat) - sat down, approached and sat

Words meanings and morphology

एवम् (evam) - thus, in this manner, so

(indeclinable)

Adverb.

Note: Modifies 'uktvā'.

उक्त्वा (uktvā) - having said, having spoken

(indeclinable)

Absolutive (Gerund)

Derived from root 'vac' (to speak).

Root: vac (class 2)

तु (tu) - but, indeed, and

(indeclinable)

Particle used for emphasis or connection.

माद्रेयः (mādreyaḥ) - Nakula (son of Madri) (son of Madri)

(proper noun)

Nominative, masculine, singular of mādreya

mādreya - son of Madri (patronymic)

Patronymic from 'Mādrī'.

Note: Subject of 'upāviśat'.

कुशैः (kuśaiḥ) - with Kuśa grass

(noun)

Instrumental, masculine, plural of kuśa

kuśa - Kuśa grass (Poa cynosuroides, sacred grass)

Note: Instrument of 'āstīrya'.

आस्तीर्य (āstīrya) - having spread out

(indeclinable)

Absolutive (Gerund)

Derived from root 'str̥' (to spread) with prefix 'ā', forming an absolutive.

Prefix: ā

Root: str̥ (class 5)

मेदिनीम् (medinīm) - the earth, the ground

(noun)

Accusative, feminine, singular of medinī

medinī - earth, ground, land

Note: Object of 'āstīrya'.

विधिवत् (vidhivat) - according to rule, properly, ritually

(indeclinable)

Adverbial form of 'vidhi' (rule, ordinance).

Note: Modifies 'upāviśat'.

पुरुषव्याघ्रः (puruṣavyāghraḥ) - a distinguished man, the best of men (tiger among men, best of men)

(noun)

Nominative, masculine, singular of puruṣavyāghra

puruṣavyāghra - a tiger among men, an eminent man, best of men

Tatpurusha compound (locative or genitive). Epithet for a great warrior or person.

Compound type : Tatpurusha (puruṣa+vyāghra)

• puruṣa – man, male, person, supreme cosmic person (puruṣa)
  noun (masculine)
• vyāghra – tiger
  noun (masculine)

Note: Appositive to 'mādreyaḥ'.

पावकम् (pāvakam) - to Agni (to the purifier, to Agni)

(noun)

Accusative, masculine, singular of pāvaka

pāvaka - fire, Agni, purifier, pure

From root 'pū' (to purify).

Root: pū (class 1)

Note: Object of the preposition 'prati'.

प्रति (prati) - towards, against, facing

(indeclinable)

Preposition, governs accusative.

Note: Combines with 'upāviśat' through external sandhi in the 'roman_words_separated' list.

उपाविशत् (upāviśat) - sat down, approached and sat

(verb)

3rd person , singular, active, past imperfect (laṅ) of upaviś

Imperfect past tense

Root 'viś' (6th class) with prefix 'upa', 3rd person singular, Imperfect (Laṅ).

Prefix: upa

Root: viś (class 6)