योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-68, verse-8

वांग्मौनं वचसां रोधो बलादिन्द्रियनिग्रहः ।
अक्षमौनं परित्यागश्चेष्टानां काष्ठसंज्ञकम् ॥ ८ ॥

vāṃgmaunaṃ vacasāṃ rodho balādindriyanigrahaḥ ,
akṣamaunaṃ parityāgaśceṣṭānāṃ kāṣṭhasaṃjñakam 8

8. vāṅmaunam vacasām rodhaḥ balāt indriyanigrahaḥ
akṣamaunam parityāgaḥ ca ceṣṭānām kāṣṭhasaṃjñakam

8. vāṅmaunam vacasām rodhaḥ balāt indriyanigrahaḥ
ceṣṭānām ca parityāgaḥ akṣamaunam kāṣṭhasaṃjñakam

8. The silence of speech (vāṅmauna) is the checking of words. The forceful restraint of the senses and the abandonment of all activities is 'sense-silence' (akṣamaunam), which is known as 'log-like' (kāṣṭhasaṃjñakam).

Words meanings summery:

• वाङ्मौनम् (vāṅmaunam) - silence of speech

• वचसाम् (vacasām) - of words, of speech

• रोधः (rodhaḥ) - checking, obstruction, stopping

• बलात् (balāt) - by force

• इन्द्रियनिग्रहः (indriyanigrahaḥ) - restraint of the senses

• अक्षमौनम् (akṣamaunam) - silence of the senses

• परित्यागः (parityāgaḥ) - abandonment, giving up

• च (ca) - and

• चेष्टानाम् (ceṣṭānām) - of activities, of efforts

• काष्ठसंज्ञकम् (kāṣṭhasaṁjñakam) - named 'log-like', known as 'inert'

Words meanings and morphology

वाङ्मौनम् (vāṅmaunam) - silence of speech

(noun)

Nominative, neuter, singular of vāṅmauna

vāṅmauna - verbal silence, silence of speech

Compound type : tatpuruṣa (vāc+mauna)

• vāc – speech, voice
  noun (feminine)
• mauna – silence, quietness
  noun (neuter)
  derived from muni (sage)

वचसाम् (vacasām) - of words, of speech

(noun)

Genitive, neuter, plural of vacas

vacas - speech, word

Root: vac (class 2)

रोधः (rodhaḥ) - checking, obstruction, stopping

(noun)

Nominative, masculine, singular of rodha

rodha - checking, stopping, obstruction

Root: rudh (class 7)

बलात् (balāt) - by force

(noun)

Ablative, neuter, singular of bala

bala - force, strength

इन्द्रियनिग्रहः (indriyanigrahaḥ) - restraint of the senses

(noun)

Nominative, masculine, singular of indriyanigraha

indriyanigraha - control of the senses

Compound type : tatpuruṣa (indriya+nigraha)

• indriya – sense organ
  noun (neuter)
• nigraha – restraint, control
  noun (masculine)
  from ni-grah (to seize, restrain)
  Prefix: ni
  Root: grah (class 9)

अक्षमौनम् (akṣamaunam) - silence of the senses

(noun)

Nominative, neuter, singular of akṣamauna

akṣamauna - silence of the senses

Compound type : tatpuruṣa (akṣa+mauna)

• akṣa – sense organ, eye
  noun (masculine)
• mauna – silence, quietness
  noun (neuter)
  derived from muni (sage)

परित्यागः (parityāgaḥ) - abandonment, giving up

(noun)

Nominative, masculine, singular of parityāga

parityāga - abandonment, relinquishment

Prefix: pari

Root: tyaj (class 1)

च (ca) - and

(indeclinable)

चेष्टानाम् (ceṣṭānām) - of activities, of efforts

(noun)

Genitive, feminine, plural of ceṣṭā

ceṣṭā - activity, effort, action

Root: ceṣṭ (class 1)

काष्ठसंज्ञकम् (kāṣṭhasaṁjñakam) - named 'log-like', known as 'inert'

(adjective)

Nominative, neuter, singular of kāṣṭhasaṃjñaka

kāṣṭhasaṁjñaka - named 'wood-like', inert, inanimate

Compound type : tatpuruṣa (kāṣṭha+saṃjñaka)

• kāṣṭha – wood, log
  noun (neuter)
• saṃjñaka – named, called, designated
  adjective (neuter)
  from saṃjñā (designation, name)