महाभारतः mahābhārataḥ - book-3, chapter-86, verse-21

पुण्या द्वारवती तत्र यत्रास्ते मधुसूदनः ।
साक्षाद्देवः पुराणोऽसौ स हि धर्मः सनातनः ॥२१॥

21. puṇyā dvāravatī tatra yatrāste madhusūdanaḥ ,
sākṣāddevaḥ purāṇo'sau sa hi dharmaḥ sanātanaḥ.

21. puṇyā dvāravatī tatra yatra āste madhusūdanaḥ
sākṣāt devaḥ purāṇaḥ asau saḥ hi dharmaḥ sanātanaḥ

21. There is the sacred Dvārakā, where Madhusūdana (Viṣṇu) resides. He is directly the ancient, primordial god, and he is indeed the eternal natural law (dharma).

Words meanings summery:

• पुण्या (puṇyā) - sacred, holy, virtuous

• द्वारवती (dvāravatī) - the city of Dvārakā (Dvārakā (name of a city))

• तत्र (tatra) - there

• यत्र (yatra) - where

• आस्ते (āste) - resides, sits, remains

• मधुसूदनः (madhusūdanaḥ) - Madhusūdana (slayer of the demon Madhu, a name of Krishna/Vishnu)

• साक्षात् (sākṣāt) - directly, visibly, personally, in person

• देवः (devaḥ) - god, deity

• पुराणः (purāṇaḥ) - ancient, primordial, old

• असौ (asau) - that one, this one (referring to Madhusūdana)

• सः (saḥ) - he, that one

• हि (hi) - indeed, surely, for

• धर्मः (dharmaḥ) - natural law, intrinsic nature, righteousness, constitution (dharma)

• सनातनः (sanātanaḥ) - eternal, everlasting, perpetual

Words meanings and morphology

पुण्या (puṇyā) - sacred, holy, virtuous

(adjective)

Nominative, feminine, singular of puṇya

puṇya - sacred, holy, meritorious, pure

Note: Qualifies 'dvāravatī'.

द्वारवती (dvāravatī) - the city of Dvārakā (Dvārakā (name of a city))

(proper noun)

Nominative, feminine, singular of dvāravatī

dvāravatī - Dvārakā (the legendary city of Krishna)

Feminine form of 'dvāravat' (having gates).

Note: Subject of an implied 'is'.

तत्र (tatra) - there

(indeclinable)

From pronominal stem 'tad' (that) + 'tral' suffix.

यत्र (yatra) - where

(indeclinable)

From pronominal stem 'ya' (which) + 'tral' suffix.

आस्ते (āste) - resides, sits, remains

(verb)

3rd person , singular, middle, present (laṭ) of ās

Present Middle

Root 'ās' (class 2) in middle voice, present tense, 3rd person singular.

Root: ās (class 2)

मधुसूदनः (madhusūdanaḥ) - Madhusūdana (slayer of the demon Madhu, a name of Krishna/Vishnu)

(proper noun)

Nominative, masculine, singular of madhusūdana

madhusūdana - Slayer of Madhu (an epithet for Krishna/Viṣṇu)

Compound noun, 'madhu' (demon name) + 'sūdana' (slayer).

Compound type : tatpuruṣa (madhu+sūdana)

• madhu – honey, sweet, name of a demon
  noun (neuter)
• sūdana – slayer, destroyer
  noun (masculine)
  From root 'sūd' (to destroy, kill).
  Root: sūd (class 10)

Note: Subject of 'āste'.

साक्षात् (sākṣāt) - directly, visibly, personally, in person

(indeclinable)

देवः (devaḥ) - god, deity

(noun)

Nominative, masculine, singular of deva

deva - god, deity, divine being

Note: Predicate nominative for 'asau' (Madhusūdana).

पुराणः (purāṇaḥ) - ancient, primordial, old

(adjective)

Nominative, masculine, singular of purāṇa

purāṇa - ancient, primordial, old, traditional

Note: Qualifies 'devaḥ' and 'asau'.

असौ (asau) - that one, this one (referring to Madhusūdana)

(pronoun)

Nominative, masculine, singular of adas

adas - that, this, yonder (demonstrative pronoun)

Note: Refers to Madhusūdana, acting as the subject.

सः (saḥ) - he, that one

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it (demonstrative pronoun)

Note: Refers to Madhusūdana, serving as the subject.

हि (hi) - indeed, surely, for

(indeclinable)

धर्मः (dharmaḥ) - natural law, intrinsic nature, righteousness, constitution (dharma)

(noun)

Nominative, masculine, singular of dharma

dharma - natural law, intrinsic nature, righteousness, constitution, duty, virtue, cosmic order (dharma)

From root 'dhṛ' (to uphold, support) + 'man' suffix.

Root: dhṛ (class 1)

Note: Predicate nominative for 'saḥ'.

सनातनः (sanātanaḥ) - eternal, everlasting, perpetual

(adjective)

Nominative, masculine, singular of sanātana

sanātana - eternal, everlasting, perpetual, primeval

Derived from 'sanā' (always) with the 'tana' suffix.

Note: Qualifies 'dharmaḥ'.