योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-178, verse-20

श्रीवसिष्ठ उवाच ।
सर्वसंदेहवृक्षाणां मूलकाषमिदं वचः ।
सर्वैकतानुभूत्यर्थं श्रृणु श्रवणभूषणम् ॥ २० ॥

śrīvasiṣṭha uvāca ,
sarvasaṃdehavṛkṣāṇāṃ mūlakāṣamidaṃ vacaḥ ,
sarvaikatānubhūtyarthaṃ śrṛṇu śravaṇabhūṣaṇam 20

20. śrīvasiṣṭha uvāca sarvasaṃdehavṛkṣāṇām mūlakāṣam idam
vacaḥ sarvaikatānubhūtyartham śṛṇu śravaṇabhūṣaṇam

20. Śrī Vasiṣṭha said: This teaching is a radical remedy for all trees of doubt. Listen to this adornment for the ears, which is imparted for the sake of experiencing the oneness of all.

Words meanings summery:

• श्रीवसिष्ठ (śrīvasiṣṭha) - Sage Vasiṣṭha (Venerable Vasiṣṭha)

• उवाच (uvāca) - said, spoke

• सर्वसंदेहवृक्षाणाम् (sarvasaṁdehavṛkṣāṇām) - of all trees of doubt

• मूलकाषम् (mūlakāṣam) - root-cutting, radical remedy, fundamental antidote

• इदम् (idam) - this

• वचः (vacaḥ) - word, speech, saying, teaching

• सर्वैकतानुभूत्यर्थम् (sarvaikatānubhūtyartham) - for the sake of experiencing the oneness of all

• शृणु (śṛṇu) - listen! hear!

• श्रवणभूषणम् (śravaṇabhūṣaṇam) - ear-ornament, adornment for the ears (metaphorically, a pleasing or valuable teaching)

Words meanings and morphology

श्रीवसिष्ठ (śrīvasiṣṭha) - Sage Vasiṣṭha (Venerable Vasiṣṭha)

(proper noun)

Nominative, masculine, singular of śrīvasiṣṭha

śrīvasiṣṭha - Venerable Vasiṣṭha (proper noun)

Compound type : tatpurusha (śrī+vasiṣṭha)

• śrī – auspicious, venerable, glorious
  adjective (feminine)
• vasiṣṭha – a Vedic sage, one of the Saptarishis
  proper noun (masculine)

उवाच (uvāca) - said, spoke

(verb)

3rd person , singular, active, perfect (lit) of uvāca

perfect tense, 3rd person singular

Root: vac (class 2)

सर्वसंदेहवृक्षाणाम् (sarvasaṁdehavṛkṣāṇām) - of all trees of doubt

(noun)

Genitive, masculine, plural of sarvasaṃdehavṛkṣa

sarvasaṁdehavṛkṣa - tree of all doubts

Compound type : tatpurusha (sarva+saṃdeha+vṛkṣa)

• sarva – all, every
  adjective (masculine)
• saṃdeha – doubt, uncertainty
  noun (masculine)
  Prefix: sam
  Root: dih (class 1)
• vṛkṣa – tree
  noun (masculine)

मूलकाषम् (mūlakāṣam) - root-cutting, radical remedy, fundamental antidote

(noun)

Nominative, neuter, singular of mūlakāṣa

mūlakāṣa - root-remedy, fundamental antidote

Compound type : tatpurusha (mūla+kāṣa)

• mūla – root, origin, foundation
  noun (neuter)
• kāṣa – rubbing, friction, an antidote, a remedy
  noun (masculine)
  Root: kaṣ (class 1)

इदम् (idam) - this

(pronoun)

Nominative, neuter, singular of idam

idam - this (pronoun)

वचः (vacaḥ) - word, speech, saying, teaching

(noun)

Nominative, neuter, singular of vacas

vacas - word, speech, saying, teaching

Root: vac (class 2)

सर्वैकतानुभूत्यर्थम् (sarvaikatānubhūtyartham) - for the sake of experiencing the oneness of all

(indeclinable)

Compound type : tatpurusha (sarva+ekatā+anubhūti+artha)

• sarva – all, every
  adjective (masculine)
• ekatā – oneness, unity, identity
  noun (feminine)
• anubhūti – experience, perception
  noun (feminine)
  Prefix: anu
  Root: bhū (class 1)
• artha – purpose, meaning, sake
  noun (masculine)

Note: Used here as an indeclinable 'for the sake of'.

शृणु (śṛṇu) - listen! hear!

(verb)

2nd person , singular, active, imperative (loṭ) of śṛṇu

imperative, 2nd person singular

Root: śru (class 5)

श्रवणभूषणम् (śravaṇabhūṣaṇam) - ear-ornament, adornment for the ears (metaphorically, a pleasing or valuable teaching)

(noun)

Nominative, neuter, singular of śravaṇabhūṣaṇa

śravaṇabhūṣaṇa - ear-ornament, a valuable teaching

Compound type : tatpurusha (śravaṇa+bhūṣaṇa)

• śravaṇa – listening, ear
  noun (neuter)
  Root: śru (class 5)
• bhūṣaṇa – ornament, decoration
  noun (neuter)
  Root: bhūṣ (class 1)