महाभारतः mahābhārataḥ - book-5, chapter-107, verse-2

अत्र लोकत्रयस्यास्य पितृपक्षः प्रतिष्ठितः ।
अत्रोष्मपानां देवानां निवासः श्रूयते द्विज ॥२॥

2. atra lokatrayasyāsya pitṛpakṣaḥ pratiṣṭhitaḥ ,
atroṣmapānāṁ devānāṁ nivāsaḥ śrūyate dvija.

2. atra lokatrayasya asya pitṛpakṣaḥ pratiṣṭhitaḥ
atra uṣmapānām devānām nivāsaḥ śrūyate dvija

2. Here, for these three worlds, the region of the ancestors (pitṛpakṣa) is established. Here, it is said, is the abode of the Usmapa deities, O twice-born (dvija).

Words meanings summery:

• अत्र (atra) - here (referring to the southern direction) (here, in this place)

• लोकत्रयस्य (lokatrayasya) - of the three worlds

• अस्य (asya) - of these (three worlds) (of this, of him, of it)

• पितृपक्षः (pitṛpakṣaḥ) - region of the ancestors (Pitṛs)

• प्रतिष्ठितः (pratiṣṭhitaḥ) - established (established, located, founded, fixed)

• अत्र (atra) - here (referring to the southern direction) (here, in this place)

• उष्मपानाम् (uṣmapānām) - of the Usmapa deities (of those who drink steam/warmth; a class of deities)

• देवानाम् (devānām) - of the deities (of the gods, of the deities)

• निवासः (nivāsaḥ) - abode (dwelling, abode, residence)

• श्रूयते (śrūyate) - is said (is heard, is said, is learned)

• द्विज (dvija) - O twice-born (dvija) (O twice-born, O Brahmin)

Words meanings and morphology

अत्र (atra) - here (referring to the southern direction) (here, in this place)

(indeclinable)

लोकत्रयस्य (lokatrayasya) - of the three worlds

(noun)

Genitive, neuter, singular of lokatraya

lokatraya - the three worlds

Compound type : dvigu (loka+traya)

• loka – world, realm
  noun (masculine)
• traya – a triad, group of three
  noun (neuter)

Note: Refers to the three main realms: earth, atmosphere, and heaven.

अस्य (asya) - of these (three worlds) (of this, of him, of it)

(pronoun)

Genitive, neuter, singular of idam

idam - this, this one

Note: Agrees with lokatrayasya.

पितृपक्षः (pitṛpakṣaḥ) - region of the ancestors (Pitṛs)

(noun)

Nominative, masculine, singular of pitṛpakṣa

pitṛpakṣa - the side of the ancestors, the realm of the Pitṛs

Compound type : tatpuruṣa (pitṛ+pakṣa)

• pitṛ – father, ancestor, forefather
  noun (masculine)
• pakṣa – side, wing, party, region
  noun (masculine)

Note: This word is to be included in brackets in the English translation.

प्रतिष्ठितः (pratiṣṭhitaḥ) - established (established, located, founded, fixed)

(adjective)

Nominative, masculine, singular of pratiṣṭhita

pratiṣṭhita - established, located, fixed, consecrated

past passive participle

Past passive participle of root sthā (to stand) with preverb prati

Prefix: prati

Root: sthā (class 1)

Note: Agrees with pitṛpakṣaḥ.

अत्र (atra) - here (referring to the southern direction) (here, in this place)

(indeclinable)

उष्मपानाम् (uṣmapānām) - of the Usmapa deities (of those who drink steam/warmth; a class of deities)

(noun)

Genitive, masculine, plural of uṣmapā

uṣmapā - drinker of warmth/steam; a class of Pitṛs or deities

Compound type : tatpuruṣa (uṣma+pā)

• uṣma – heat, warmth, steam
  noun (masculine)
• pā – drinker, protector
  noun (masculine)
  Agent noun from root pā (to drink)
  Root: pā (class 1)

Note: A specific class of celestial beings, sometimes identified as Pitṛs, who consume the subtle essence (warmth/steam) of offerings.

देवानाम् (devānām) - of the deities (of the gods, of the deities)

(noun)

Genitive, masculine, plural of deva

deva - god, deity, celestial being

Root: div (class 4)

Note: Agrees with uṣmapānām.

निवासः (nivāsaḥ) - abode (dwelling, abode, residence)

(noun)

Nominative, masculine, singular of nivāsa

nivāsa - dwelling, abode, residence, habitation

Derived from root vas (to dwell) with preverb ni

Prefix: ni

Root: vas (class 1)

श्रूयते (śrūyate) - is said (is heard, is said, is learned)

(verb)

3rd person , singular, passive, present (laṭ) of śru

Root: śru (class 5)

द्विज (dvija) - O twice-born (dvija) (O twice-born, O Brahmin)

(noun)

Vocative, masculine, singular of dvija

dvija - twice-born (a Brahmin, Kshatriya, or Vaishya), bird, tooth, serpent

Compound type : tatpuruṣa (dvi+ja)

• dvi – two
  numeral
• ja – born, produced from
  adjective
  suffix/agent noun
  Derived from root jan (to be born)
  Root: jan (class 4)

Note: Refers to Gālava, who is a Brahmin and thus 'twice-born'.