योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-33, verse-37

अहंभावोऽङ्कुरो जन्म वृक्षाणामक्षयात्मनाम् ।
ममेदमिति विस्तीर्णास्तेषां शाखाः सहस्रशः ॥ ३७ ॥

ahaṃbhāvo'ṅkuro janma vṛkṣāṇāmakṣayātmanām ,
mamedamiti vistīrṇāsteṣāṃ śākhāḥ sahasraśaḥ 37

37. ahaṃbhāvaḥ aṅkuraḥ janma vṛkṣāṇām akṣaya-ātmanām
mama idam iti vistīrṇāḥ teṣām śākhāḥ sahasraśaḥ

37. ahaṃbhāvaḥ aṅkuraḥ (ca) akṣaya-ātmanām vṛkṣāṇām janma (asti).
mama idam iti (bhāvena) teṣām śākhāḥ sahasraśaḥ vistīrṇāḥ (bhavanti)

37. The ego-sense (ahaṃbhāva) is the sprout and source of trees that are essentially indestructible. "This is mine" — thus their branches spread out by the thousands.

Words meanings summery:

• अहंभावः (ahaṁbhāvaḥ) - the ego-sense (ahaṃbhāva) (ego-sense, I-ness, sense of individuality)

• अङ्कुरः (aṅkuraḥ) - the sprout (metaphor for origin) (sprout, shoot, germ)

• जन्म (janma) - the origin, source (birth, origin, production, creation)

• वृक्षाणाम् (vṛkṣāṇām) - of trees (metaphorically referring to the extensive nature of ego's manifestations) (of trees)

• अक्षय-आत्मनाम् (akṣaya-ātmanām) - of those whose essence is indestructible (of those whose nature is imperishable/undecaying)

• मम (mama) - mine (my, mine)

• इदम् (idam) - this (object of possession) (this, this one)

• इति (iti) - thus, marking the thought (thus, so, in this manner, marking direct speech or thought)

• विस्तीर्णाः (vistīrṇāḥ) - spread out, widely extended (spread out, extended, widely diffused)

• तेषाम् (teṣām) - their (referring to the ego-trees) (of them, their)

• शाखाः (śākhāḥ) - branches (metaphor for manifestations or extensions) (branches)

• सहस्रशः (sahasraśaḥ) - by the thousands (by thousands, in thousands, a thousandfold)

Words meanings and morphology

अहंभावः (ahaṁbhāvaḥ) - the ego-sense (ahaṃbhāva) (ego-sense, I-ness, sense of individuality)

(noun)

Nominative, masculine, singular of ahaṃbhāva

ahaṁbhāva - ego-sense, I-ness, concept of individuality, pride

From aham (I) + bhāva (state, nature, being).

Compound type : karmadhāraya (aham+bhāva)

• aham – I, ego
  pronoun
• bhāva – state, condition, nature, being, emotion
  noun (masculine)
  From √bhū (to be, become).
  Root: √bhū (class 1)

Note: The core concept being discussed.

अङ्कुरः (aṅkuraḥ) - the sprout (metaphor for origin) (sprout, shoot, germ)

(noun)

Nominative, masculine, singular of aṅkura

aṅkura - sprout, shoot, bud, germ

Note: Describes ahaṃbhāva.

जन्म (janma) - the origin, source (birth, origin, production, creation)

(noun)

Nominative, neuter, singular of janman

janman - birth, origin, production, creation, life

From √jan (to be born).

Root: √jan (class 4)

Note: Further describes ahaṃbhāva.

वृक्षाणाम् (vṛkṣāṇām) - of trees (metaphorically referring to the extensive nature of ego's manifestations) (of trees)

(noun)

Genitive, masculine, plural of vṛkṣa

vṛkṣa - tree, plant

Note: Possessive, indicating what ahaṃbhāva is the sprout/origin of.

अक्षय-आत्मनाम् (akṣaya-ātmanām) - of those whose essence is indestructible (of those whose nature is imperishable/undecaying)

(adjective)

Genitive, masculine, plural of akṣaya-ātman

akṣaya-ātman - having an imperishable nature, undecaying soul/self

Compound type : bahuvrīhi (a+kṣaya+ātman)

• a – not, non-, un-
  indeclinable
  Negative prefix.
• kṣaya – destruction, decay, loss, waste
  noun (masculine)
  From √kṣi (to waste away, destroy).
  Root: √kṣi (class 1)
• ātman – self, soul, spirit, essence
  noun (masculine)

Note: Emphasizes the deep-rooted and persistent nature of these ego-trees.

मम (mama) - mine (my, mine)

(pronoun)

Genitive, singular of asmad

asmad - I, me, my

Genitive singular of asmad.

Note: Forms part of the direct quote "mama idam" (this is mine).

इदम् (idam) - this (object of possession) (this, this one)

(pronoun)

Nominative, neuter, singular of idam

idam - this, here, now

Neuter singular nominative.

Note: Part of the phrase "this is mine".

इति (iti) - thus, marking the thought (thus, so, in this manner, marking direct speech or thought)

(indeclinable)

Particle.

विस्तीर्णाः (vistīrṇāḥ) - spread out, widely extended (spread out, extended, widely diffused)

(adjective)

Nominative, feminine, plural of vistīrṇa

vistīrṇa - spread out, extended, vast, wide, diffused

Past Passive Participle

From vi-√tṝ (to cross over, extend).

Prefix: vi

Root: √tṝ (class 1)

Note: Describes the branches.

तेषाम् (teṣām) - their (referring to the ego-trees) (of them, their)

(pronoun)

Genitive, masculine, plural of tad

tad - that, it, he, she

Genitive plural, masculine (agreeing with vṛkṣāṇām or implying masculine vṛkṣāḥ).

Note: Possessive for śākhāḥ.

शाखाः (śākhāḥ) - branches (metaphor for manifestations or extensions) (branches)

(noun)

Nominative, feminine, plural of śākhā

śākhā - branch, bough, arm, division

Note: The physical manifestations of the ego-trees.

सहस्रशः (sahasraśaḥ) - by the thousands (by thousands, in thousands, a thousandfold)

(indeclinable)

Suffix śas indicates distribution or manner.

Note: Indicates the vast number of branches.