योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-122, verse-7

तेन तनुमानसां नाम
विवेकभूमिमवतीर्णो भवति ॥ ७ ॥

tena tanumānasāṃ nāma
vivekabhūmimavatīrṇo bhavati 7

7. tena tanumānasām nāma
vivekabhūmim avatīrṇaḥ bhavati

7. tena nāma tanumānasām
vivekabhūmim avatīrṇaḥ bhavati

7. Through that [process], one indeed attains the stage named 'subtle mind' (tanumānasā), which is the plane of discrimination (viveka).

Words meanings summery:

• तेन (tena) - by that process or state previously described (by that, by it)

• तनुमानसाम् (tanumānasām) - the stage of having an attenuated or subtle mind, a specific yogic stage (of the subtle mind, having a subtle mind)

• नाम (nāma) - indicating that it is referred to by that name (by name, named, indeed, verily)

• विवेकभूमिम् (vivekabhūmim) - to the specific stage where spiritual discrimination (viveka) is attained (to the plane/stage of discrimination)

• अवतीर्णः (avatīrṇaḥ) - he has attained or entered this specific stage (descended, arrived, attained, entered)

• भवति (bhavati) - one becomes, one enters that state (becomes, is)

Words meanings and morphology

तेन (tena) - by that process or state previously described (by that, by it)

(pronoun)

Instrumental, neuter, singular of tad

tad - that, it

तनुमानसाम् (tanumānasām) - the stage of having an attenuated or subtle mind, a specific yogic stage (of the subtle mind, having a subtle mind)

(noun)

Accusative, feminine, singular of tanumānasā

tanumānasā - subtle mind; a stage in the seven states of yoga (yoga) where the mind (manas) becomes attenuated

Compound type : karmadhāraya (tanu+manas)

• tanu – thin, subtle, slender, body
  adjective
  Root: tan (class 8)
• manas – mind, intellect, understanding
  noun (neuter)
  Root: man (class 4)

Note: Here used as a proper name for a stage, hence feminine singular accusative.

नाम (nāma) - indicating that it is referred to by that name (by name, named, indeed, verily)

(indeclinable)

विवेकभूमिम् (vivekabhūmim) - to the specific stage where spiritual discrimination (viveka) is attained (to the plane/stage of discrimination)

(noun)

Accusative, feminine, singular of vivekabhūmi

vivekabhūmi - plane of discrimination (viveka), stage of discernment

Compound type : tatpuruṣa (viveka+bhūmi)

• viveka – discrimination, discernment, judgment
  noun (masculine)
  Prefix: vi
  Root: cic (class 7)
• bhūmi – ground, earth, land, stage, state
  noun (feminine)
  Root: bhū (class 1)

अवतीर्णः (avatīrṇaḥ) - he has attained or entered this specific stage (descended, arrived, attained, entered)

(adjective)

Nominative, masculine, singular of avatīrṇa

avatīrṇa - descended, arrived, crossed over, attained

Past Passive Participle

From ava-√tṛ

Prefix: ava

Root: tṛ (class 1)

भवति (bhavati) - one becomes, one enters that state (becomes, is)

(verb)

3rd person , singular, active, present (laṭ) of bhū

present active

Root: bhū (class 1)