योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-20, verse-23

मनोविपुलमूलानां दोषाशीविषधारिणाम् ।
शोषरोदनवृक्षाणां यौवनं बत काननम् ॥ २३ ॥

manovipulamūlānāṃ doṣāśīviṣadhāriṇām ,
śoṣarodanavṛkṣāṇāṃ yauvanaṃ bata kānanam 23

23. manas-vipula-mūlānām doṣa-āśīviṣa-dhāriṇām
śoṣa-rodana-vṛkṣāṇām yauvanam bata kānanam

23. bata yauvanam manas-vipula-mūlānām
doṣa-āśīviṣa-dhāriṇām śoṣa-rodana-vṛkṣāṇām kānanam

23. Alas, youth is a forest (kānanam) for the trees of decay and lamentation, which have vast roots in the mind and bear the poisonous snakes of faults.

Words meanings summery:

• मनोविपुलमूलानाम् (manovipulamūlānām) - of those whose roots are vast in the mind

• दोषाशीविषधारिणाम् (doṣāśīviṣadhāriṇām) - of those bearing poisonous snakes of faults

• शोषरोदन-वृक्षाणाम् (śoṣarodana-vṛkṣāṇām) - of the trees of decay and lamentation

• यौवनम् (yauvanam) - youth, youthfulness

• बत (bata) - alas! (alas! oh! ah! (expresses sorrow, pity, or wonder))

• काननम् (kānanam) - forest, grove, garden

Words meanings and morphology

मनोविपुलमूलानाम् (manovipulamūlānām) - of those whose roots are vast in the mind

(adjective)

Genitive, masculine, plural of manovipulamūla

manovipulamūla - having vast roots in the mind

Bahuvrihi compound: 'whose roots (mūla) are vast (vipula) in the mind (manas)'.

Compound type : bahuvrihi (manas+vipula+mūla)

• manas – mind, intellect, thought, heart
  noun (neuter)
• vipula – vast, extensive, large, broad, abundant
  adjective
• mūla – root, base, origin, foundation
  noun (neuter)

दोषाशीविषधारिणाम् (doṣāśīviṣadhāriṇām) - of those bearing poisonous snakes of faults

(adjective)

Genitive, masculine, plural of doṣāśīviṣadhārin

doṣāśīviṣadhārin - one bearing the poisonous snakes of faults (faults likened to poisonous snakes)

Compound: 'doṣa' (fault) + 'āśīviṣa' (poisonous snake) forms a Tatpurusha or Karmadhāraya 'fault-snake', then 'dhārin' (bearing) forms a Bahuvrihi 'one who bears fault-snakes'.

Compound type : bahuvrihi (doṣa+āśīviṣa+dhārin)

• doṣa – fault, defect, vice, error
  noun (masculine)
  From root duṣ (to be corrupt).
  Root: duṣ (class 4)
• āśīviṣa – poisonous snake, serpent (literally, 'one whose poison is in its fangs')
  noun (masculine)
  Bahuvrihi compound: 'whose poison (viṣa) is in its fangs (āśī)'.
• dhārin – bearing, holding, possessing, wearing
  adjective
  Agent noun derived from root dhṛ (to bear, hold) with suffix ṇin.
  Root: dhṛ (class 1)

शोषरोदन-वृक्षाणाम् (śoṣarodana-vṛkṣāṇām) - of the trees of decay and lamentation

(noun)

Genitive, masculine, plural of śoṣarodanavṛkṣa

śoṣarodanavṛkṣa - trees of drying up/decay and weeping/lamentation

Tatpurusha compound: 'vṛkṣa' (tree) of 'śoṣa' (decay) and 'rodana' (lamentation). 'śoṣa-rodana' is a Dvandva compound.

Compound type : tatpurusha (śoṣa+rodana+vṛkṣa)

• śoṣa – drying up, desiccation, decay, wasting away
  noun (masculine)
  From root śuṣ (to dry, wither).
  Root: śuṣ (class 4)
• rodana – weeping, crying, lamentation, causing to weep
  noun (neuter)
  From root rud (to weep).
  Root: rud (class 2)
• vṛkṣa – tree
  noun (masculine)

यौवनम् (yauvanam) - youth, youthfulness

(noun)

Nominative, neuter, singular of yauvana

yauvana - youth, period of youth, youthful vigor

Derived from 'yuvan' (young).

बत (bata) - alas! (alas! oh! ah! (expresses sorrow, pity, or wonder))

(indeclinable)

काननम् (kānanam) - forest, grove, garden

(noun)

Nominative, neuter, singular of kānana

kānana - forest, grove, garden, wood