योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-61, verse-9

स बभूव परं मित्रं सुरघो रघुनन्दन ।
नन्दनोद्यानसंस्थस्य मदनस्येव माधवः ॥ ९ ॥

sa babhūva paraṃ mitraṃ suragho raghunandana ,
nandanodyānasaṃsthasya madanasyeva mādhavaḥ 9

9. saḥ babhūva param mitram suraghoḥ raghunandana
nandanodyānasaṃsthasya madanasya eva mādhavaḥ

9. raghunandana saḥ suraghoḥ param mitram babhūva
nandanodyānasaṃsthasya madanasya eva mādhavaḥ

9. O Rāghunandana, he (Parigha) became a most excellent friend to Suraghu, just as the spring season (mādhava) is to Madana (the god of love) dwelling in the Nandana garden.

Words meanings summery:

• सः (saḥ) - He (Parigha) (he, that (masculine))

• बभूव (babhūva) - he became, he was

• परम् (param) - most excellent (supreme, excellent, highest)

• मित्रम् (mitram) - friend, alliance, sun

• सुरघोः (suraghoḥ) - of Suraghu

• रघुनन्दन (raghunandana) - O Rāma (O descendent of Raghu, O delight of the Raghus)

• नन्दनोद्यानसंस्थस्य (nandanodyānasaṁsthasya) - of Madana, who is situated in the Nandana garden (of the one situated in the Nandana garden)

• मदनस्य (madanasya) - of Madana, of the god of love

• एव (eva) - just as (part of the simile) (indeed, just as, only, like)

• माधवः (mādhavaḥ) - the spring season (Mādhava, the spring season, a bee, Viṣṇu, Kṛṣṇa)

Words meanings and morphology

सः (saḥ) - He (Parigha) (he, that (masculine))

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

बभूव (babhūva) - he became, he was

(verb)

3rd person , singular, active, perfect (liṭ) of √bhū

Perfect Active

Third person singular, Perfect tense, Active voice

Root: √bhū (class 1)

परम् (param) - most excellent (supreme, excellent, highest)

(adjective)

Nominative, neuter, singular of para

para - supreme, highest, excellent, other, ultimate

Note: Here used as an adjective modifying 'mitram'.

मित्रम् (mitram) - friend, alliance, sun

(noun)

Nominative, neuter, singular of mitra

mitra - friend, companion, alliance, sun

सुरघोः (suraghoḥ) - of Suraghu

(proper noun)

Genitive, masculine, singular of suraghu

suraghu - Suraghu (a proper name)

रघुनन्दन (raghunandana) - O Rāma (O descendent of Raghu, O delight of the Raghus)

(proper noun)

Vocative, masculine, singular of raghunandana

raghunandana - delight of the Raghus, descendent of Raghu (an epithet for Rāma)

Compound: Raghu (proper noun) + nandana (delight, son).

Compound type : tatpuruṣa (raghu+nandana)

• raghu – Raghu (name of an ancient king, ancestor of Rāma)
  proper noun (masculine)
• nandana – delight, joy, son, foster-child
  noun (masculine)
  From root √nand (to rejoice).
  Root: √nand (class 1)

नन्दनोद्यानसंस्थस्य (nandanodyānasaṁsthasya) - of Madana, who is situated in the Nandana garden (of the one situated in the Nandana garden)

(adjective)

Genitive, masculine, singular of nandanodyānasaṃstha

nandanodyānasaṁstha - dwelling in the Nandana garden

Bahuvrihi compound.

Compound type : bahuvrihi (nandana+udyāna+saṃstha)

• nandana – Nandana (name of Indra's celestial garden); delighting
  proper noun (neuter)
• udyāna – garden, park
  noun (neuter)
  From prefix ut- and root √yam, meaning 'to go out, to raise'.
  Prefix: ut
  Root: √yam (class 1)
• saṃstha – standing, existing, situated, abiding
  adjective (masculine)
  From prefix sam- and root √sthā (to stand) + a suffix. Means 'being in, belonging to'.
  Prefix: sam
  Root: √sthā (class 1)

Note: Declines like a noun.

मदनस्य (madanasya) - of Madana, of the god of love

(proper noun)

Genitive, masculine, singular of madana

madana - intoxication, passion, god of love (Kāmadeva)

From root √mad (to be intoxicated, delighted).

Root: √mad (class 4)

एव (eva) - just as (part of the simile) (indeed, just as, only, like)

(indeclinable)

Emphatic particle, also used for comparison.

माधवः (mādhavaḥ) - the spring season (Mādhava, the spring season, a bee, Viṣṇu, Kṛṣṇa)

(noun)

Nominative, masculine, singular of mādhava

mādhava - pertaining to spring, spring season, a bee, a name of Viṣṇu/Kṛṣṇa

From madhu (honey, spring) + aṇ suffix.