योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-55, verse-26

नीडश्वसत्सुविश्वस्तसुप्तमात्रकपक्षिणम् ।
पाकच्युतफलोपान्तभूतकञ्चुकमण्डली ॥ २६ ॥

nīḍaśvasatsuviśvastasuptamātrakapakṣiṇam ,
pākacyutaphalopāntabhūtakañcukamaṇḍalī 26

26. nīḍaśvasatsuviśvastasuptamātrakapakṣiṇam
pākacyutaphalopāntabhūtakañcukamaṇḍalī

26. nīḍaśvasatsuviśvastasuptamātrakapakṣiṇam
pākacyutaphalopāntabhūtakañcukamaṇḍalī

26. A place characterized by birds softly breathing, peacefully and trustingly sleeping in their nests; and by a multitude of creatures whose bodies are found near ripened, fallen fruits.

Words meanings summery:

• नीडश्वसत्सुविश्वस्तसुप्तमात्रकपक्षिणम् (nīḍaśvasatsuviśvastasuptamātrakapakṣiṇam) - describing a forest or place where birds are peacefully resting (that which possesses birds just sleeping trustingly and breathing in their nests)

• पाकच्युतफलोपान्तभूतकञ्चुकमण्डली (pākacyutaphalopāntabhūtakañcukamaṇḍalī) - describing a forest or place where creatures gather near fallen fruit (a multitude of creatures with bodies near ripened, fallen fruits)

Words meanings and morphology

नीडश्वसत्सुविश्वस्तसुप्तमात्रकपक्षिणम् (nīḍaśvasatsuviśvastasuptamātrakapakṣiṇam) - describing a forest or place where birds are peacefully resting (that which possesses birds just sleeping trustingly and breathing in their nests)

(adjective)

Accusative, masculine, singular of nīḍaśvasatsuviśvastasuptamātrakapakṣin

nīḍaśvasatsuviśvastasuptamātrakapakṣin - having birds that are just sleeping very trustingly and breathing in their nests

Compound type : bahuvrihi (nīḍa+śvasat+su+viśvasta+supta+mātraka+pakṣin)

• nīḍa – nest, dwelling
  noun (neuter)
• śvasat – breathing, alive
  participle
  Present Active Participle
  Derived from root śvas (to breathe).
  Root: śvas (class 2)
• su – good, well, very
  indeclinable
• viśvasta – trusted, confided in, confident, peaceful
  participle
  Past Passive Participle
  Derived from root vi-śvas (to trust).
  Prefix: vi
  Root: śvas (class 2)
• supta – slept, sleeping
  participle
  Past Passive Participle
  Derived from root svap (to sleep).
  Root: svap (class 2)
• mātraka – only, just, merely
  indeclinable
• pakṣin – bird
  noun (masculine)

Note: Refers to an implied accusative object, likely 'a forest' (vanam) or 'a region' (pradeśam).

पाकच्युतफलोपान्तभूतकञ्चुकमण्डली (pākacyutaphalopāntabhūtakañcukamaṇḍalī) - describing a forest or place where creatures gather near fallen fruit (a multitude of creatures with bodies near ripened, fallen fruits)

(noun)

Nominative, feminine, singular of pākacyutaphalopāntabhūtakañcukamaṇḍalī

pākacyutaphalopāntabhūtakañcukamaṇḍalī - a collection of creatures whose coverings/bodies are near fruits fallen due to ripening

Compound type : tatpurusha (pāka+cyuta+phala+upānta+bhūta+kañcuka+maṇḍalī)

• pāka – ripening, cooking, maturity
  noun (masculine)
  Root: pac (class 1)
• cyuta – fallen, dropped, deviated
  participle
  Past Passive Participle
  Derived from root cyu (to move, fall).
  Root: cyu (class 1)
• phala – fruit, result, reward
  noun (neuter)
• upānta – near, proximity, vicinity
  noun (neuter)
  Prefix: upa
• bhūta – creature, being, element, past
  noun (neuter)
  Often means 'being, creature' when used as a noun.
  Root: bhū (class 1)
• kañcuka – jacket, skin, shell, covering
  noun (masculine)
• maṇḍalī – multitude, group, circle, flock
  noun (feminine)

Note: Subject of an implied verb, or a descriptive noun for a place.