योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-4, verse-46

आतिवाहिकदेहात्मा मन इत्यभिधीयते ।
आधिभौतिकबुद्धिं तु स आधत्ते चिरस्थितेः ॥ ४६ ॥

ātivāhikadehātmā mana ityabhidhīyate ,
ādhibhautikabuddhiṃ tu sa ādhatte cirasthiteḥ 46

46. ātivāhikadehātmā manaḥ iti abhidhīyate |
ādhibhautikabuddhim tu saḥ ādhatte cirasthiteḥ

46. ātivāhikadehātmā manaḥ iti abhidhīyate tu
saḥ ādhibhautikabuddhim cirasthiteḥ ādhatte

46. The self (ātman) that is the subtle body (ātivāhika deha) is called the mind (manas). That (mind), however, adopts the physical intellect (ādhibhautika-buddhi) for its long-lasting existence.

Words meanings summery:

• आतिवाहिकदेहात्मा (ātivāhikadehātmā) - Refers to the individual self or soul embodied in a subtle, transmigratory body, which is identified with the mind. (the self consisting of the subtle body)

• मनः (manaḥ) - mind, intellect, heart

• इति (iti) - Marks a direct statement or definition. (thus, so, in this manner)

• अभिधीयते (abhidhīyate) - is called, is designated, is named

• आधिभौतिकबुद्धिम् (ādhibhautikabuddhim) - Refers to the faculty of understanding that interacts with the material world. (the physical intellect, intellect related to gross elements)

• तु (tu) - but, however, on the other hand

• सः (saḥ) - Refers to the 'ātivāhikadehātmā' or 'manaḥ'. (he, that)

• आधत्ते (ādhatte) - assumes, takes on, maintains, places

• चिरस्थितेः (cirasthiteḥ) - Indicates the purpose: for the sake of lasting existence or stability. (of long permanence, for long existence)

Words meanings and morphology

आतिवाहिकदेहात्मा (ātivāhikadehātmā) - Refers to the individual self or soul embodied in a subtle, transmigratory body, which is identified with the mind. (the self consisting of the subtle body)

(noun)

Nominative, masculine, singular of ātivāhikadehātman

ātivāhikadehātman - the self (ātman) that is the subtle, vehicular body (ātivāhika deha)

Compound type : karmadhāraya (ātivāhika+deha+ātman)

• ātivāhika – subtle, ethereal, vehicular, transmigratory
  adjective (masculine)
• deha – body, physical form
  noun (masculine)
• ātman – self, soul, spirit, individual essence
  noun (masculine)

मनः (manaḥ) - mind, intellect, heart

(noun)

Nominative, neuter, singular of manas

manas - mind, intellect, heart, consciousness

इति (iti) - Marks a direct statement or definition. (thus, so, in this manner)

(indeclinable)

अभिधीयते (abhidhīyate) - is called, is designated, is named

(verb)

3rd person , singular, passive, present (lat) of abhidhā

Prefix: abhi

Root: dhā (class 3)

आधिभौतिकबुद्धिम् (ādhibhautikabuddhim) - Refers to the faculty of understanding that interacts with the material world. (the physical intellect, intellect related to gross elements)

(noun)

Accusative, feminine, singular of ādhibhautikabuddhi

ādhibhautikabuddhi - the intellect (buddhi) pertaining to gross elements or physical beings (ādhibhautika)

Compound type : karmadhāraya (ādhibhautika+buddhi)

• ādhibhautika – pertaining to living beings, material, physical, pertaining to gross elements
  adjective (masculine/neuter)
• buddhi – intellect, understanding, discernment, reason
  noun (feminine)

तु (tu) - but, however, on the other hand

(indeclinable)

सः (saḥ) - Refers to the 'ātivāhikadehātmā' or 'manaḥ'. (he, that)

(pronoun)

Nominative, masculine, singular of tad

tad - he, that

आधत्ते (ādhatte) - assumes, takes on, maintains, places

(verb)

3rd person , singular, middle, present (lat) of ādhā

Prefix: ā

Root: dhā (class 3)

चिरस्थितेः (cirasthiteḥ) - Indicates the purpose: for the sake of lasting existence or stability. (of long permanence, for long existence)

(noun)

Genitive, feminine, singular of cirasthiti

cirasthiti - long duration, permanence, lasting existence

Compound type : karmadhāraya (cira+sthiti)

• cira – long, lasting, for a long time
  adjective (masculine)
• sthiti – state, condition, permanence, duration, stability
  noun (feminine)
  Root: sthā (class 1)

Note: Genitive case often conveys purpose or possession.