महाभारतः mahābhārataḥ - book-12, chapter-47, verse-39

सहस्रशिरसे तस्मै पुरुषायामितात्मने ।
चतुःसमुद्रपर्याययोगनिद्रात्मने नमः ॥३९॥

39. sahasraśirase tasmai puruṣāyāmitātmane ,
catuḥsamudraparyāyayoganidrātmane namaḥ.

39. sahasraśirase tasmai puruṣāya amitātmane
catuḥsamudraparyāyayoganiḍrāātmane namaḥ

39. tasmai sahasraśirase puruṣāya amitātmane
catuḥsamudraparyāyayoganiḍrāātmane namaḥ

39. Salutations to that thousand-headed supreme cosmic person (puruṣa), whose self (ātman) is immeasurable, and whose being is the meditative sleep (yoga-nidrā) that encompasses the four oceans.

Words meanings summery:

• सहस्रशिरसे (sahasraśirase) - to the thousand-headed one

• तस्मै (tasmai) - to him

• पुरुषाय (puruṣāya) - to the supreme cosmic person (puruṣa) (to the man, to the male, to the cosmic person (puruṣa))

• अमितात्मने (amitātmane) - to the one whose self (ātman) is immeasurable, to the immeasurable self

• चतुःसमुद्रपर्याययोगनिड्राआत्मने (catuḥsamudraparyāyayoganiḍrāātmane) - to the one whose being is the meditative sleep (yoga-nidrā) encompassing the four oceans

• नमः (namaḥ) - salutations, homage

Words meanings and morphology

सहस्रशिरसे (sahasraśirase) - to the thousand-headed one

(noun)

Dative, masculine, singular of sahasraśiras

sahasraśiras - thousand-headed

Compound noun referring to a deity with a thousand heads (e.g., Vishnu, Purusha).

Compound type : bahuvrīhi (sahasra+śiras)

• sahasra – thousand
  numeral
• śiras – head
  noun (neuter)

Note: Refers to the Puruṣa.

तस्मै (tasmai) - to him

(pronoun)

Dative, masculine, singular of tad

tad - that, he, she, it (demonstrative pronoun)

Demonstrative pronoun

Note: Refers to the deity.

पुरुषाय (puruṣāya) - to the supreme cosmic person (puruṣa) (to the man, to the male, to the cosmic person (puruṣa))

(noun)

Dative, masculine, singular of puruṣa

puruṣa - man, male, person, spirit, supreme being, cosmic person (puruṣa)

अमितात्मने (amitātmane) - to the one whose self (ātman) is immeasurable, to the immeasurable self

(noun)

Dative, masculine, singular of amitātman

amitātman - whose self (ātman) is immeasurable, having an immeasurable nature

Compound noun describing the nature of the deity.

Compound type : bahuvrīhi (amita+ātman)

• amita – immeasurable, boundless, unlimited
  adjective (masculine)
  Past Passive Participle
  Derived from root √mā (to measure) with prefix a- (negation).
  Prefix: a
  Root: mā (class 2)
• ātman – self, soul, essential nature, consciousness (ātman)
  noun (masculine)

चतुःसमुद्रपर्याययोगनिड्राआत्मने (catuḥsamudraparyāyayoganiḍrāātmane) - to the one whose being is the meditative sleep (yoga-nidrā) encompassing the four oceans

(noun)

Dative, masculine, singular of catuḥsamudraparyāyayoganiḍrāātman

catuḥsamudraparyāyayoganiḍrāātman - whose self (ātman) is the meditative sleep (yoga-nidrā) that encompasses the four oceans

Very long Bahuvrīhi compound.

Compound type : bahuvrīhi (catuḥ+samudra+paryāya+yoga+nidrā+ātman)

• catuḥ – four
  numeral
• samudra – ocean, sea
  noun (masculine)
• paryāya – turn, rotation, sequence, encompassing
  noun (masculine)
• yoga – union, connection, discipline, meditation (yoga)
  noun (masculine)
  Root: yuj (class 7)
• nidrā – sleep
  noun (feminine)
• ātman – self, soul, essential nature, consciousness (ātman)
  noun (masculine)

नमः (namaḥ) - salutations, homage

(indeclinable)

Indeclinable form used to express reverence, often taking a dative object.

Root: nam (class 1)