योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-23, verse-42

तारुण्यनलिनीसोम आयुर्मातङ्गकेसरी ।
न तदस्ति न यस्यायं तुच्छातुच्छस्य तस्करः ॥ ४२ ॥

tāruṇyanalinīsoma āyurmātaṅgakesarī ,
na tadasti na yasyāyaṃ tucchātucchasya taskaraḥ 42

42. tāruṇya-nalinī-somaḥ āyus-mātaṅga-kesarī na tat
asti na yasya ayam tucchā-tucchasya taskaraḥ

42. ayam tāruṇya-nalinī-somaḥ āyus-mātaṅga-kesarī.
tat na asti,
yasya ayam tucchā-tucchasya taskaraḥ na.

42. He is the moon for the lotus pond of youth and the lion for the elephant of life. There is nothing, whether great or small, of which he is not the thief.

Words meanings summery:

• तारुण्य-नलिनी-सोमः (tāruṇya-nalinī-somaḥ) - that which delights and nourishes youth (like the moon to lotuses) (the moon for the lotus pond of youth)

• आयुस्-मातङ्ग-केसरी (āyus-mātaṅga-kesarī) - that which destroys life (like a lion destroys an elephant) (the lion for the elephant of life)

• न (na) - not, no

• तत् (tat) - that, it

• अस्ति (asti) - is, exists

• न (na) - not, no

• यस्य (yasya) - of which, whose

• अयम् (ayam) - this one (referring to Time or the destroyer) (this, he)

• तुच्छा-तुच्छस्य (tucchā-tucchasya) - of the insignificant and significant, of the small and great

• तस्करः (taskaraḥ) - thief, robber

Words meanings and morphology

तारुण्य-नलिनी-सोमः (tāruṇya-nalinī-somaḥ) - that which delights and nourishes youth (like the moon to lotuses) (the moon for the lotus pond of youth)

(noun)

Nominative, masculine, singular of tāruṇya-nalinī-soma

tāruṇya-nalinī-soma - moon to the lotus pond of youth

Tatpuruṣa compound: 'tāruṇya' (youth) + 'nalinī' (lotus pond) + 'soma' (moon). Metaphorically describes something as the 'moon' for the 'lotus pond' of 'youth'.

Compound type : Tatpuruṣa (tāruṇya+nalinī+soma)

• tāruṇya – youth, adolescence
  noun (neuter)
• nalinī – lotus pond, a lotus
  noun (feminine)
• soma – moon, soma plant, nectar
  noun (masculine)

Note: An epithet for the destroyer (Time).

आयुस्-मातङ्ग-केसरी (āyus-mātaṅga-kesarī) - that which destroys life (like a lion destroys an elephant) (the lion for the elephant of life)

(noun)

Nominative, masculine, singular of āyus-mātaṅga-kesarin

āyus-mātaṅga-kesarin - lion to the elephant of life

Tatpuruṣa compound: 'āyus' (life) + 'mātaṅga' (elephant) + 'kesarin' (lion). Metaphorically describes something as the 'lion' for the 'elephant' of 'life'.

Compound type : Tatpuruṣa (āyus+mātaṅga+kesarin)

• āyus – life, lifespan, duration of life
  noun (neuter)
• mātaṅga – elephant
  noun (masculine)
• kesarin – lion, having a mane
  noun (masculine)

Note: An epithet for the destroyer (Time).

न (na) - not, no

(indeclinable)

Negative particle.

तत् (tat) - that, it

(pronoun)

Nominative, neuter, singular of tad

tad - that, it, such

Demonstrative pronoun, nominative/accusative singular neuter.

अस्ति (asti) - is, exists

(verb)

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

Present Active 3rd person singular

Root 'as' (2P) in present indicative, 3rd singular active.

Root: as (class 2)

न (na) - not, no

(indeclinable)

Negative particle.

यस्य (yasya) - of which, whose

(pronoun)

Genitive, masculine/neuter, singular of yad

yad - which, what, whatever

Relative pronoun, genitive singular (masculine/neuter).

अयम् (ayam) - this one (referring to Time or the destroyer) (this, he)

(pronoun)

Nominative, masculine, singular of idam

idam - this, he, she, it

Demonstrative pronoun, nominative singular masculine.

तुच्छा-तुच्छस्य (tucchā-tucchasya) - of the insignificant and significant, of the small and great

(adjective)

Genitive, masculine/neuter, singular of tucchā-atuccha

tucchā-atuccha - insignificant and significant

Dvandva compound of 'tuccha' (insignificant) and 'atuccha' (not insignificant, i.e., significant).

Compound type : Dvandva (tuccha+atuccha)

• tuccha – empty, insignificant, small, trivial
  adjective (masculine)
• atuccha – not insignificant, important, great
  adjective (masculine)
  Compound of negative 'a' and 'tuccha'.

Note: Modifies an implied noun like 'vastunaḥ' (of a thing).

तस्करः (taskaraḥ) - thief, robber

(noun)

Nominative, masculine, singular of taskara

taskara - thief, robber

From 'tat-kara' (that-doer), often interpreted as 'one who takes that' (tat + kṛ).