महाभारतः mahābhārataḥ - book-3, chapter-12, verse-4

रात्रौ निशीथे स्वाभीले गतेऽर्धसमये नृप ।
प्रचारे पुरुषादानां रक्षसां भीमकर्मणाम् ॥४॥

4. rātrau niśīthe svābhīle gate'rdhasamaye nṛpa ,
pracāre puruṣādānāṁ rakṣasāṁ bhīmakarmaṇām.

4. rātrau niśīthe svābhīle gate ardhasamaye nṛpa
pracāre puruṣādānām rakṣasām bhīmakarmaṇām

4. O king (nṛpa), when half the time had passed, in the middle of a dreadful night, during the prowling of the man-eating (puruṣādānām) and terrifying (bhīmakarmaṇām) rākṣasas.

Words meanings summery:

• रात्रौ (rātrau) - in the night (at night, in the night)

• निशीथे (niśīthe) - in the middle of the night (in the middle of the night, midnight)

• स्वाभीले (svābhīle) - dreadful (night) (dreadful, very terrible)

• गते (gate) - had passed (when half the time had passed) (having gone, passed)

• अर्धसमये (ardhasamaye) - when half the time had passed (at half the time)

• नृप (nṛpa) - O king (nṛpa) (addressing Dhritarashtra) (O king)

• प्रचारे (pracāre) - during the prowling (in the movement, in the roaming, during the prowling)

• पुरुषादानाम् (puruṣādānām) - of the man-eating (puruṣādānām) (of man-eaters, of those who eat men)

• रक्षसाम् (rakṣasām) - of the rākṣasas (of rākṣasas, of demons)

• भीमकर्मणाम् (bhīmakarmaṇām) - and terrifying (bhīmakarmaṇām) (of terrible deeds, having terrible deeds)

Words meanings and morphology

रात्रौ (rātrau) - in the night (at night, in the night)

(noun)

Locative, feminine, singular of rātri

rātri - night

निशीथे (niśīthe) - in the middle of the night (in the middle of the night, midnight)

(noun)

Locative, masculine, singular of niśītha

niśītha - midnight, middle of the night

स्वाभीले (svābhīle) - dreadful (night) (dreadful, very terrible)

(adjective)

Locative, masculine, singular of svābhīla

svābhīla - very dreadful, terrible

Note: Compound with `su` (good/intensive) + `abhīla` (terrible). So 'very terrible'.

गते (gate) - had passed (when half the time had passed) (having gone, passed)

(adjective)

Locative, masculine, singular of gata

gata - gone, passed, reached

Past Passive Participle

PPP of root gam

Root: gam (class 1)

Note: Used in locative absolute construction with `ardhasamaye`.

अर्धसमये (ardhasamaye) - when half the time had passed (at half the time)

(noun)

Locative, masculine, singular of ardhasamaya

ardhasamaya - half time, half of the period

Compound type : tatpurusha (ardha+samaya)

• ardha – half
  adjective (masculine)
• samaya – time, season, proper moment
  noun (masculine)
  Prefix: sam
  Root: i (class 2)

Note: Used in locative absolute construction.

नृप (nṛpa) - O king (nṛpa) (addressing Dhritarashtra) (O king)

(noun)

Vocative, masculine, singular of nṛpa

nṛpa - king, protector of men

Compound type : tatpurusha (nṛ+pa)

• nṛ – man, human being
  noun (masculine)
• pa – protector, ruler (from root pā 'to protect')
  noun (masculine)
  Root: pā (class 2)

प्रचारे (pracāre) - during the prowling (in the movement, in the roaming, during the prowling)

(noun)

Locative, masculine, singular of pracāra

pracāra - movement, course, roaming, spreading

Derived from pra-car

Prefix: pra

Root: car (class 1)

Note: Used in locative absolute construction, indicating 'while/during the movement'.

पुरुषादानाम् (puruṣādānām) - of the man-eating (puruṣādānām) (of man-eaters, of those who eat men)

(adjective)

Genitive, masculine, plural of puruṣāda

puruṣāda - man-eater

Compound type : tatpurusha (puruṣa+ada)

• puruṣa – man, human being, person (puruṣa)
  noun (masculine)
• ada – eating, consuming (from root ad)
  adjective (masculine)
  Agent Noun / Primary Derivative
  From root ad (to eat)
  Root: ad (class 2)

Note: Describes `rakṣasām`.

रक्षसाम् (rakṣasām) - of the rākṣasas (of rākṣasas, of demons)

(noun)

Genitive, neuter, plural of rakṣas

rakṣas - demon, rākṣasa

Note: Often refers to malevolent beings or demons in mythology.

भीमकर्मणाम् (bhīmakarmaṇām) - and terrifying (bhīmakarmaṇām) (of terrible deeds, having terrible deeds)

(adjective)

Genitive, masculine, plural of bhīmakarman

bhīmakarman - having dreadful/terrible deeds

Compound type : bahuvrihi (bhīma+karman)

• bhīma – terrible, dreadful
  adjective (masculine)
  Root: bhī (class 3)
• karman – deed, action
  noun (neuter)
  Root: kṛ (class 8)

Note: Describes `rakṣasām`.