वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-15, verse-23

ततो देवाः सगन्धर्वाः
सिद्धाश्च परमर्षयः ॥२३॥

23. tato devāḥ sagandharvāḥ
siddhāśca paramarṣayaḥ.

23. tataḥ devāḥ sagandharvāḥ
siddhāḥ ca paramarṣayaḥ

23. tataḥ devāḥ sagandharvāḥ
siddhāḥ ca paramarṣayaḥ

23. Then the gods, accompanied by gandharvas, along with siddhas and great sages [gathered to witness].

Words meanings summery:

• ततः (tataḥ) - then, thence, from that

• देवाः (devāḥ) - gods, deities

• सगन्धर्वाः (sagandharvāḥ) - accompanied by gandharvas, with gandharvas

• सिद्धाः (siddhāḥ) - perfected beings, accomplished ones

• च (ca) - and

• परमर्षयः (paramarṣayaḥ) - great sages, supreme seers

Words meanings and morphology

ततः (tataḥ) - then, thence, from that

(indeclinable)

देवाः (devāḥ) - gods, deities

(noun)

Nominative, masculine, plural of deva

deva - god, deity, celestial being

Root: div (class 4)

सगन्धर्वाः (sagandharvāḥ) - accompanied by gandharvas, with gandharvas

(adjective)

Nominative, masculine, plural of sagandharva

sagandharva - accompanied by gandharvas (celestial musicians and attendants of the gods)

Compound type : bahuvrīhi (sa+gandharva)

• sa – with, together with, accompanied by
  indeclinable
• gandharva – gandharva (a class of celestial beings, singers, and musicians)
  noun (masculine)

सिद्धाः (siddhāḥ) - perfected beings, accomplished ones

(noun)

Nominative, masculine, plural of siddha

siddha - perfected, accomplished, successful, a perfected being (class of semi-divine beings)

Past Passive Participle

Derived from root sidh- 'to accomplish, succeed'

Root: sidh (class 1)

च (ca) - and

(indeclinable)

परमर्षयः (paramarṣayaḥ) - great sages, supreme seers

(noun)

Nominative, masculine, plural of paramarṣi

paramarṣi - great sage, supreme seer

Compound type : karmadhāraya (parama+ṛṣi)

• parama – supreme, highest, excellent, great
  adjective (masculine)
• ṛṣi – sage, seer, inspired poet
  noun (masculine)