योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-20, verse-22

नाशायैव मदार्तस्य दोषमौक्तिकधारिणः ।
अभिमानमहेभस्य नित्यालानं हि यौवनम् ॥ २२ ॥

nāśāyaiva madārtasya doṣamauktikadhāriṇaḥ ,
abhimānamahebhasya nityālānaṃ hi yauvanam 22

22. nāśāya eva mada-ārtasya doṣa-mauktika-dhāriṇaḥ
abhimāna-mahebhasya nitya-ālānam hi yauvanam

22. yauvanam hi mada-ārtasya doṣa-mauktika-dhāriṇaḥ
abhimāna-mahebhasya nitya-ālānam eva nāśāya

22. Youth is indeed the permanent tying post for the great elephant of ego (ahaṅkāra), which is afflicted by arrogance and bears the pearls of faults; it leads solely to its destruction.

Words meanings summery:

• नाशाय (nāśāya) - for destruction, for ruin

• एव (eva) - solely (indeed, only, just, exactly)

• मदार्तस्य (madārtasya) - of the one afflicted by arrogance (of one afflicted by intoxication or pride, of the arrogant one)

• दोषमौक्तिकधारिणः (doṣamauktikadhāriṇaḥ) - of the one bearing pearls of faults

• अभिमान-महेभस्य (abhimāna-mahebhasya) - of the great elephant of ego (ahaṅkāra)

• नित्य-आलानम् (nitya-ālānam) - permanent tying post

• हि (hi) - indeed (indeed, surely, for)

• यौवनम् (yauvanam) - youth, youthfulness

Words meanings and morphology

नाशाय (nāśāya) - for destruction, for ruin

(noun)

Dative, masculine, singular of nāśa

nāśa - destruction, ruin, loss, disappearance

From root naś (to perish).

Root: naś (class 4)

एव (eva) - solely (indeed, only, just, exactly)

(indeclinable)

मदार्तस्य (madārtasya) - of the one afflicted by arrogance (of one afflicted by intoxication or pride, of the arrogant one)

(adjective)

Genitive, masculine, singular of madārta

madārta - afflicted by intoxication, mad with pride, arrogant

Tatpurusha compound: 'mada' (intoxication/pride) and 'ārta' (afflicted).

Compound type : tatpurusha (mada+ārta)

• mada – intoxication, pride, arrogance, passion
  noun (masculine)
  From root mad (to be intoxicated, rejoice).
  Root: mad (class 4)
• ārta – afflicted, distressed, pained, suffering
  adjective
  Past Passive Participle
  From root ṛ (to go) with prefix ā, or root ṛt (to pain).
  Prefix: ā
  Root: ṛ (class 3)

दोषमौक्तिकधारिणः (doṣamauktikadhāriṇaḥ) - of the one bearing pearls of faults

(adjective)

Genitive, masculine, singular of doṣamauktikadhārin

doṣamauktikadhārin - one bearing fault-pearls (faults likened to pearls)

Compound: 'doṣa' (fault) + 'mauktika' (pearl) forms a Tatpurusha or Karmadhāraya 'fault-pearl', then 'dhārin' (bearing) forms a Bahuvrihi 'one who bears fault-pearls'.

Compound type : bahuvrihi (doṣa+mauktika+dhārin)

• doṣa – fault, defect, vice, error
  noun (masculine)
  From root duṣ (to be corrupt).
  Root: duṣ (class 4)
• mauktika – pearl, pearly, made of pearls
  noun (neuter)
  Derived from 'muktā' (pearl).
• dhārin – bearing, holding, possessing, wearing
  adjective
  Agent noun derived from root dhṛ (to bear, hold) with suffix ṇin.
  Root: dhṛ (class 1)

अभिमान-महेभस्य (abhimāna-mahebhasya) - of the great elephant of ego (ahaṅkāra)

(noun)

Genitive, masculine, singular of abhimānamahebha

abhimānamahebha - the great elephant of ego or pride

Tatpurusha compound: 'abhimāna' (ego/pride) + 'mahebha' (great elephant). 'mahebha' itself is a Karmadhāraya 'mahā' (great) + 'ibha' (elephant).

Compound type : tatpurusha (abhimāna+mahā+ibha)

• abhimāna – ego, pride, self-respect, haughtiness
  noun (masculine)
  From root man (to think) with prefix abhi.
  Prefix: abhi
  Root: man (class 4)
• mahā – great, large, mighty
  adjective (feminine)
  Feminine form of mahat, used as a prefix.
• ibha – elephant
  noun (masculine)

नित्य-आलानम् (nitya-ālānam) - permanent tying post

(noun)

Nominative, neuter, singular of nityālāna

nityālāna - a permanent or constant tying post (for elephants)

Karmadhāraya compound: 'nitya' (eternal/constant) + 'ālāna' (tying post).

Compound type : karmadharaya (nitya+ālāna)

• nitya – eternal, constant, perpetual, regular
  adjective
• ālāna – a post for tying an elephant, a fetter, tether
  noun (neuter)
  Prefix: ā
  Root: lā (class 1)

हि (hi) - indeed (indeed, surely, for)

(indeclinable)

यौवनम् (yauvanam) - youth, youthfulness

(noun)

Nominative, neuter, singular of yauvana

yauvana - youth, period of youth, youthful vigor

Derived from 'yuvan' (young).