योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-30, verse-3

शम्बरस्य भयाद्गत्वा पातालमथ सप्तमम् ।
दामव्यालकटास्तस्थुस्त्यक्त्वाथ निजमण्डलम् ॥ ३ ॥

śambarasya bhayādgatvā pātālamatha saptamam ,
dāmavyālakaṭāstasthustyaktvātha nijamaṇḍalam 3

3. śambarasya bhayāt gatvā pātālam atha saptamam
dāmavyālakaṭāḥ tasthuḥ tyaktvā atha nijamaṇḍalam

3. śambarasya bhayāt dāmavyālakaṭāḥ nijamaṇḍalam
tyaktvā saptamam pātālam gatvā atha tasthuḥ

3. From fear of Śambara, Dāmavyālakaṭa and his followers abandoned their own realm and went to the seventh Pātāla, where they stayed.

Words meanings summery:

• शम्बरस्य (śambarasya) - referring to the demon Śambara whose anger prompted their flight (of Śambara)

• भयात् (bhayāt) - the reason for their departure (from fear, out of fear)

• गत्वा (gatvā) - having gone

• पातालम् (pātālam) - the destination of Dāmavyālakaṭa and his followers (to Pātāla, the netherworld)

• अथ (atha) - indicating a sequence of events (then, thereupon, now)

• सप्तमम् (saptamam) - referring to the seventh of the Pātāla regions (the seventh)

• दामव्यालकटाः (dāmavyālakaṭāḥ) - the group of demons who are the subject of the sentence (Dāmavyālakaṭa (and his followers))

• तस्थुः (tasthuḥ) - they took residence in Pātāla (stayed, remained, stood)

• त्यक्त्वा (tyaktvā) - after giving up their own realm (having abandoned, having forsaken)

• अथ (atha) - indicating a sequence of events (then, now, and)

• निजमण्डलम् (nijamaṇḍalam) - the region or territory belonging to Dāmavyālakaṭa and his followers (their own realm/domain)

Words meanings and morphology

शम्बरस्य (śambarasya) - referring to the demon Śambara whose anger prompted their flight (of Śambara)

(proper noun)

Genitive, masculine, singular of śambara

śambara - Śambara (name of a demon)

भयात् (bhayāt) - the reason for their departure (from fear, out of fear)

(noun)

Ablative, neuter, singular of bhaya

bhaya - fear, terror, dread

गत्वा (gatvā) - having gone

(indeclinable)

absolutive (gerund)

Indeclinable past participle, indicates an action completed before the main verb.

Root: gam (class 1)

पातालम् (pātālam) - the destination of Dāmavyālakaṭa and his followers (to Pātāla, the netherworld)

(noun)

Accusative, neuter, singular of pātāla

pātāla - the netherworld, one of the seven subterranean regions

अथ (atha) - indicating a sequence of events (then, thereupon, now)

(indeclinable)

सप्तमम् (saptamam) - referring to the seventh of the Pātāla regions (the seventh)

(adjective)

Accusative, neuter, singular of saptama

saptama - seventh

दामव्यालकटाः (dāmavyālakaṭāḥ) - the group of demons who are the subject of the sentence (Dāmavyālakaṭa (and his followers))

(proper noun)

Nominative, masculine, plural of dāmavyālakaṭa

dāmavyālakaṭa - Dāmavyālakaṭa (name of a demon or a group of demons)

तस्थुः (tasthuḥ) - they took residence in Pātāla (stayed, remained, stood)

(verb)

3rd person , plural, active, past perfect (lit) of sthā

Root: sthā (class 1)

त्यक्त्वा (tyaktvā) - after giving up their own realm (having abandoned, having forsaken)

(indeclinable)

absolutive (gerund)

Indeclinable past participle, indicates an action completed before the main verb.

Root: tyaj (class 1)

अथ (atha) - indicating a sequence of events (then, now, and)

(indeclinable)

निजमण्डलम् (nijamaṇḍalam) - the region or territory belonging to Dāmavyālakaṭa and his followers (their own realm/domain)

(noun)

Accusative, neuter, singular of nijamaṇḍala

nijamaṇḍala - one's own realm, personal domain, native region

Compound type : karmadhāraya (nija+maṇḍala)

• nija – own, proper, personal, native
  adjective (neuter)
• maṇḍala – circle, disc, orb, region, realm, territory
  noun (neuter)