महाभारतः mahābhārataḥ - book-7, chapter-144, verse-42

स्वे स्वान्परे परांश्चापि निजघ्नुरितरेतरम् ।
निर्मर्यादमभूद्युद्धं रात्रौ घोरं भयावहम् ॥४२॥

42. sve svānpare parāṁścāpi nijaghnuritaretaram ,
nirmaryādamabhūdyuddhaṁ rātrau ghoraṁ bhayāvaham.

42. sve svān pare parān ca api nijaghnuḥ itaretaram
nirmaryādam abhūt yuddham rātrau ghoram bhayāvaham

42. sve svān nijaghnuḥ ca,
pare parān api itaretaram nijaghnuḥ.
rātrau yuddham nirmaryādam ghoram bhayāvaham abhūt.

42. Their own people killed their own kin, and others attacked others, striking down one another. At night, the battle became terrible, terrifying, and utterly unrestrained.

Words meanings summery:

• स्वे (sve) - their own (people)

• स्वान् (svān) - their own (people)

• परे (pare) - others, enemies

• परान् (parān) - others, enemies

• च (ca) - and, also

• अपि (api) - also, even

• निजघ्नुः (nijaghnuḥ) - they killed, struck down

• इतरेतरम् (itaretaram) - mutually, each other

• निर्मर्यादम् (nirmaryādam) - becoming unrestrained (unrestrained, without limits, lawless)

• अभूत् (abhūt) - became, happened, existed

• युद्धम् (yuddham) - battle, war

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

• घोरम् (ghoram) - terrifying, dreadful, fierce

• भयावहम् (bhayāvaham) - terrifying, frightful, causing fear

Words meanings and morphology

स्वे (sve) - their own (people)

(pronoun)

Nominative, masculine, plural of sva

sva - own, one's own, self, kinsman

स्वान् (svān) - their own (people)

(pronoun)

Accusative, masculine, plural of sva

sva - own, one's own, self, kinsman

परे (pare) - others, enemies

(pronoun)

Nominative, masculine, plural of para

para - other, different, enemy, supreme

परान् (parān) - others, enemies

(pronoun)

Accusative, masculine, plural of para

para - other, different, enemy, supreme

च (ca) - and, also

(indeclinable)

अपि (api) - also, even

(indeclinable)

निजघ्नुः (nijaghnuḥ) - they killed, struck down

(verb)

3rd person , plural, active, perfect (lit) of han

Prefix: ni

Root: han (class 2)

इतरेतरम् (itaretaram) - mutually, each other

(indeclinable)

निर्मर्यादम् (nirmaryādam) - becoming unrestrained (unrestrained, without limits, lawless)

(adjective)

Nominative, neuter, singular of nirmaryāda

nirmaryāda - without limits, unrestrained, lawless, immoderate

Compound type : prādi-tatpuruṣa (nis+maryādā)

• nis – out, forth, without
  indeclinable
• maryādā – limit, boundary, rule, restraint
  noun (feminine)

अभूत् (abhūt) - became, happened, existed

(verb)

3rd person , singular, active, aorist (luṅ) of bhū

Root: bhū (class 1)

युद्धम् (yuddham) - battle, war

(noun)

Nominative, neuter, singular of yuddha

yuddha - battle, fight, war

रात्रौ (rātrau) - at night, in the night

(noun)

Locative, feminine, singular of rātri

rātri - night

घोरम् (ghoram) - terrifying, dreadful, fierce

(adjective)

Nominative, neuter, singular of ghora

ghora - terrible, dreadful, fierce, frightful

भयावहम् (bhayāvaham) - terrifying, frightful, causing fear

(adjective)

Nominative, neuter, singular of bhayāvaha

bhayāvaha - causing fear, terrifying, frightful

Compound type : tatpurusha (bhaya+āvaha)

• bhaya – fear, dread
  noun (neuter)
• āvaha – bringing, causing, producing
  adjective (masculine)
  Derived from root 'vah' (to carry, bring) with prefix 'ā'.
  Prefix: ā
  Root: vah (class 1)