योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-38, verse-20

मृतार्धमृतदेहौघसृतासृक्प्लुतनिर्झरम् ।
सजीवनरपृष्ठस्थशवस्पन्दनभ्रान्तिदम् ॥ २० ॥

mṛtārdhamṛtadehaughasṛtāsṛkplutanirjharam ,
sajīvanarapṛṣṭhasthaśavaspandanabhrāntidam 20

20. mṛta ardhamṛta deha ogha sṛta asṛk pluta nirjharam
| sajīva nara pṛṣṭhastha śava spandana bhrāntidam

20. mṛta ardhamṛta deha ogha sṛta asṛk pluta nirjharam
sajīva nara pṛṣṭhastha śava spandana bhrāntidam

20. It was a scene where streams, soaked with blood, flowed from masses of dead and half-dead bodies, and it caused the illusion of movement in corpses due to living men standing upon their backs.

Words meanings summery:

• मृतार्धमृतदेहौघसृतासृक्प्लुतनिर्झरम् (mṛtārdhamṛtadehaughasṛtāsṛkplutanirjharam) - Describing the horrifying state of the battlefield, with blood flowing from numerous casualties. (Having streams soaked in blood flowing from masses of dead and half-dead bodies.)

• सजीवनरपृष्ठस्थशवस्पन्दनभ्रान्तिदम् (sajīvanarapṛṣṭhasthaśavaspandanabhrāntidam) - Describing a peculiar and unsettling visual effect on the battlefield, where the movement of living soldiers on corpses creates an eerie illusion. (Causing the illusion of movement in corpses that have living men standing on their backs.)

Words meanings and morphology

मृतार्धमृतदेहौघसृतासृक्प्लुतनिर्झरम् (mṛtārdhamṛtadehaughasṛtāsṛkplutanirjharam) - Describing the horrifying state of the battlefield, with blood flowing from numerous casualties. (Having streams soaked in blood flowing from masses of dead and half-dead bodies.)

(adjective)

neuter, singular of mṛtārdhamṛtadehaughasṛtāsṛkplutanirjhara

mṛtārdhamṛtadehaughasṛtāsṛkplutanirjhara - (compound adjective) having streams soaked in blood flowing from masses of dead and half-dead bodies

Compound type : bahuvrīhi (mṛta+ardhamṛta+deha+ogha+sṛta+asṛk+pluta+nirjhara)

• mṛta – dead
  adjective
  Past Passive Participle
  From root mṛ (to die)
  Root: mṛ (class 6)
• ardhamṛta – half-dead
  adjective
• deha – body
  noun (masculine)
  Root: dih
• ogha – mass, multitude, flood
  noun (masculine)
• sṛta – flowed, streaming, issued from
  adjective
  Past Passive Participle
  From root sṛ (to flow)
  Root: sṛ (class 1)
• asṛj – blood
  noun (neuter)
• pluta – covered, soaked, bathed in
  adjective
  Past Passive Participle
  From root plu (to float, to bathe)
  Root: plu (class 1)
• nirjhara – stream, waterfall, cascade
  noun (masculine)
  Prefix: nir
  Root: jhṛ

Note: Modifies an implied neuter noun like 'yuddhabhūmim' (battlefield) in the accusative case.

सजीवनरपृष्ठस्थशवस्पन्दनभ्रान्तिदम् (sajīvanarapṛṣṭhasthaśavaspandanabhrāntidam) - Describing a peculiar and unsettling visual effect on the battlefield, where the movement of living soldiers on corpses creates an eerie illusion. (Causing the illusion of movement in corpses that have living men standing on their backs.)

(adjective)

neuter, singular of sajīvanarapṛṣṭhasthaśavaspandanabhrāntida

sajīvanarapṛṣṭhasthaśavaspandanabhrāntida - (compound adjective) causing the illusion of movement in corpses that have living men standing on their backs

Compound type : bahuvrīhi (sajīva+nara+pṛṣṭhastha+śava+spandana+bhrāntida)

• sajīva – living, alive
  adjective
  With sa (with) and jīva (life).
  Prefix: sa
  Root: jīv
• nara – man, human being
  noun (masculine)
  Root: nṛ
• pṛṣṭhastha – standing on the back
  adjective
  Root: sthā (class 1)
• śava – corpse, dead body
  noun (masculine)
  Root: śū
• spandana – trembling, throbbing, movement, twitching
  noun (neuter)
  Action noun
  From root spand (to throb, vibrate).
  Root: spand (class 1)
• bhrāntida – causing illusion, deluding
  adjective
  bhrānti (illusion) + da (giving, causing).
  Root: dā (class 3)

Note: Modifies an implied neuter noun like 'yuddhabhūmim' (battlefield) in the accusative case.