महाभारतः mahābhārataḥ - book-6, chapter-7, verse-16

तत्र देवगणा राजन्गन्धर्वासुरराक्षसाः ।
अप्सरोगणसंयुक्ताः शैले क्रीडन्ति नित्यशः ॥१६॥

16. tatra devagaṇā rājangandharvāsurarākṣasāḥ ,
apsarogaṇasaṁyuktāḥ śaile krīḍanti nityaśaḥ.

16. tatra devagaṇāḥ rājan gandharvāsurarākṣasāḥ
apsarogaṇasaṃyuktāḥ śaile krīḍanti nityaśaḥ

16. rājan,
tatra śaile devagaṇāḥ gandharvāsurarākṣasāḥ apsarogaṇasaṃyuktāḥ nityaśaḥ krīḍanti

16. O king, there on that mountain, hosts of gods, along with Gandharvas, Asuras, and Rakshasas, joined by groups of Apsaras, constantly play.

Words meanings summery:

• तत्र (tatra) - on Mount Meru (there, in that place)

• देवगणाः (devagaṇāḥ) - hosts of gods, groups of gods

• राजन् (rājan) - O king

• गन्धर्वासुरराक्षसाः (gandharvāsurarākṣasāḥ) - Gandharvas, Asuras, and Rakshasas

• अप्सरोगणसंयुक्ताः (apsarogaṇasaṁyuktāḥ) - accompanied by groups of Apsaras

• शैले (śaile) - on Mount Meru (on the mountain, in the mountain)

• क्रीडन्ति (krīḍanti) - they play, they sport, they amuse themselves

• नित्यशः (nityaśaḥ) - constantly, perpetually, always

Words meanings and morphology

तत्र (tatra) - on Mount Meru (there, in that place)

(indeclinable)

देवगणाः (devagaṇāḥ) - hosts of gods, groups of gods

(noun)

Nominative, masculine, plural of devagaṇa

devagaṇa - host of gods, assembly of deities

Compound type : tatpuruṣa (deva+gaṇa)

• deva – god, deity
  noun (masculine)
• gaṇa – group, host, assembly
  noun (masculine)

राजन् (rājan) - O king

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler

गन्धर्वासुरराक्षसाः (gandharvāsurarākṣasāḥ) - Gandharvas, Asuras, and Rakshasas

(noun)

Nominative, masculine, plural of gandharvāsurarākṣasa

gandharvāsurarākṣasa - Gandharvas, Asuras, and Rakshasas (as a collective group)

Compound type : dvandva (gandharva+asura+rākṣasa)

• gandharva – celestial musician, a class of demigods
  noun (masculine)
• asura – demon, anti-god
  noun (masculine)
• rākṣasa – demon, evil spirit
  noun (masculine)

Note: Refers to a collective group of mythological beings.

अप्सरोगणसंयुक्ताः (apsarogaṇasaṁyuktāḥ) - accompanied by groups of Apsaras

(adjective)

Nominative, masculine, plural of apsarogaṇasaṃyukta

apsarogaṇasaṁyukta - accompanied by hosts of Apsaras

Compound type : tatpuruṣa (apsarogaṇa+saṃyukta)

• apsarogaṇa – group of Apsaras
  noun (masculine)
• saṃyukta – joined, connected, associated
  adjective
  Past Passive Participle
  from sam-yuj
  Prefix: sam
  Root: yuj (class 7)

Note: Agrees with devagaṇāḥ and gandharvāsurarākṣasāḥ.

शैले (śaile) - on Mount Meru (on the mountain, in the mountain)

(noun)

Locative, masculine, singular of śaila

śaila - mountain, rock

Note: Refers to Mount Meru.

क्रीडन्ति (krīḍanti) - they play, they sport, they amuse themselves

(verb)

3rd person , plural, active, present (laṭ) of krīḍ

present active indicative

3rd person plural, parasmaipada, present tense

Root: krīḍ (class 1)

नित्यशः (nityaśaḥ) - constantly, perpetually, always

(indeclinable)

derived from nitya (constant) with suffix -śaḥ