महाभारतः mahābhārataḥ - book-3, chapter-187, verse-38

अर्धं मम शरीरस्य सर्वलोकपितामहः ।
अहं नारायणो नाम शङ्खचक्रगदाधरः ॥३८॥

38. ardhaṁ mama śarīrasya sarvalokapitāmahaḥ ,
ahaṁ nārāyaṇo nāma śaṅkhacakragadādharaḥ.

38. ardham mama śarīrasya sarvalokapitāmahaḥ
aham nārāyaṇaḥ nāma śaṅkhacakragadādharaḥ

38. The grandfather of all worlds (Brahma) constitutes half of my body. I am known as Nārāyaṇa, the wielder of the conch, discus, and mace.

Words meanings summery:

• अर्धम् (ardham) - half (half, part)

• मम (mama) - my (my, of me)

• शरीरस्य (śarīrasya) - of my body (of the body, pertaining to the body)

• सर्वलोकपितामहः (sarvalokapitāmahaḥ) - the grandfather of all worlds (Brahma) (grandfather of all worlds (Brahma))

• अहम् (aham) - I

• नारायणः (nārāyaṇaḥ) - Nārāyaṇa (Nārāyaṇa (a name of Vishnu))

• नाम (nāma) - by name (by name, indeed, namely)

• शङ्खचक्रगदाधरः (śaṅkhacakragadādharaḥ) - the wielder of the conch, discus, and mace (holder of conch, discus, and mace)

Words meanings and morphology

अर्धम् (ardham) - half (half, part)

(noun)

Nominative, neuter, singular of ardha

ardha - half, part, side

Note: The subject of the sentence (implied 'is').

मम (mama) - my (my, of me)

(pronoun)

Genitive, singular of asmad

asmad - I, me

Note: Possessive pronoun modifying 'śarīrasya'.

शरीरस्य (śarīrasya) - of my body (of the body, pertaining to the body)

(noun)

Genitive, neuter, singular of śarīra

śarīra - body, corporeal frame

Root: śṛ (class 1)

Note: Possessive case, indicating 'half of the body'.

सर्वलोकपितामहः (sarvalokapitāmahaḥ) - the grandfather of all worlds (Brahma) (grandfather of all worlds (Brahma))

(proper noun)

Nominative, masculine, singular of sarvalokapitāmaha

sarvalokapitāmaha - the great-grandfather of all worlds, a title for Brahmā

Compound type : tatpuruṣa (sarva+loka+pitāmaha)

• sarva – all, every
  adjective (neuter)
• loka – world, realm
  noun (masculine)
  Root: loc (class 1)
• pitāmaha – grandfather, great-father, Brahmā
  noun (masculine)

Note: Predicate nominative for 'ardham'.

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, me

नारायणः (nārāyaṇaḥ) - Nārāyaṇa (Nārāyaṇa (a name of Vishnu))

(proper noun)

Nominative, masculine, singular of nārāyaṇa

nārāyaṇa - Nārāyaṇa (a name of Vishnu, meaning 'resting on the waters' or 'refuge of man')

Note: Predicate nominative for 'aham'.

नाम (nāma) - by name (by name, indeed, namely)

(indeclinable)

शङ्खचक्रगदाधरः (śaṅkhacakragadādharaḥ) - the wielder of the conch, discus, and mace (holder of conch, discus, and mace)

(proper noun)

Nominative, masculine, singular of śaṅkhacakragadādhara

śaṅkhacakragadādhara - holder of conch, discus, and mace (epithet of Vishnu)

Compound type : bahuvrīhi (śaṅkha+cakra+gadā+dhara)

• śaṅkha – conch-shell
  noun (masculine)
• cakra – discus, wheel
  noun (neuter)
  Root: kṛ (class 8)
• gadā – mace, club
  noun (feminine)
  Root: gad (class 1)
• dhara – bearer, holder, wearing
  adjective (masculine)
  Derived from root 'dhṛ' (to hold, bear).
  Root: dhṛ (class 1)

Note: An attribute of the speaker (Nārāyaṇa).