योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-19, verse-23

आदर्शः सर्वशास्त्राणामर्थिनां कल्पपादपः ।
पादपीठं द्विजाग्र्याणां राकाधर्मामृतत्विषः ॥ २३ ॥

ādarśaḥ sarvaśāstrāṇāmarthināṃ kalpapādapaḥ ,
pādapīṭhaṃ dvijāgryāṇāṃ rākādharmāmṛtatviṣaḥ 23

23. ādarśaḥ sarvaśāstrāṇām arthinām kalpapadapaḥ
pādapīṭham dvijāgryāṇām rākādharmāmṛtatviṣaḥ

23. sarvaśāstrāṇām ādarśaḥ arthinām kalpapadapaḥ
dvijāgryāṇām pādapīṭham rākādharmāmṛtatviṣaḥ

23. He is a mirror for all scriptures, a wish-fulfilling tree (kalpapadapa) for petitioners, a footstool for the foremost among the twice-born (dvija), and whose splendor is like the nectar from the full moon and from natural law (dharma).

Words meanings summery:

• आदर्शः (ādarśaḥ) - a perfect representation or an ideal guide (a mirror, model, example, guide)

• सर्वशास्त्राणाम् (sarvaśāstrāṇām) - of all scriptures/sciences

• अर्थिनाम् (arthinām) - of those who seek, petitioners, supplicants

• कल्पपदपः (kalpapadapaḥ) - a source of limitless fulfillment for desires, granting all wishes (a wish-fulfilling tree (kalpapadapa/kalpavṛkṣa))

• पादपीठम् (pādapīṭham) - a symbol of respect or humble service, implying one whose feet are honored (a footstool)

• द्विजाग्र्याणाम् (dvijāgryāṇām) - of the most respected Brahmins or learned individuals (of the foremost among the twice-born (dvija))

• राकाधर्मामृतत्विषः (rākādharmāmṛtatviṣaḥ) - whose splendor is like the nectar from the full moon and from natural law (dharma)

Words meanings and morphology

आदर्शः (ādarśaḥ) - a perfect representation or an ideal guide (a mirror, model, example, guide)

(noun)

Nominative, masculine, singular of ādarśa

ādarśa - mirror, looking-glass; model, ideal; example, guide

Prefix: ā

Root: dṛś (class 1)

सर्वशास्त्राणाम् (sarvaśāstrāṇām) - of all scriptures/sciences

(noun)

Genitive, neuter, plural of sarvaśāstra

sarvaśāstra - all scriptures, all branches of knowledge/science

Compound type : karmadhāraya (sarva+śāstra)

• sarva – all, every, whole, entire
  pronoun
• śāstra – scripture, treatise, science, sacred text, rule, teaching
  noun (neuter)
  Root: śās (class 2)

अर्थिनाम् (arthinām) - of those who seek, petitioners, supplicants

(noun)

Genitive, masculine, plural of arthin

arthin - one who seeks, petitioner, desirous, needy, supplicant

Root: arth (class 10)

कल्पपदपः (kalpapadapaḥ) - a source of limitless fulfillment for desires, granting all wishes (a wish-fulfilling tree (kalpapadapa/kalpavṛkṣa))

(noun)

Nominative, masculine, singular of kalpapadapa

kalpapadapa - wish-fulfilling tree (kalpavṛkṣa), a mythical tree that grants all desires

Compound type : tatpuruṣa (kalpa+pādapa)

• kalpa – a wish, intention, determination (related to kalpana, imagination); also a cosmic age
  noun (masculine)
  Root: kḷp (class 1)
• pādapa – tree (lit. 'foot-drinker', referring to roots absorbing water)
  noun (masculine)
  Root: pā (class 1)

पादपीठम् (pādapīṭham) - a symbol of respect or humble service, implying one whose feet are honored (a footstool)

(noun)

Nominative, neuter, singular of pādapīṭha

pādapīṭha - footstool, a low seat or stand for the feet

Compound type : ṣaṣṭhī-tatpuruṣa (pāda+pīṭha)

• pāda – foot, leg
  noun (masculine)
• pīṭha – seat, stool, bench, base
  noun (neuter)

Note: The nominative singular neuter form is pādapīṭham (with m ending).

द्विजाग्र्याणाम् (dvijāgryāṇām) - of the most respected Brahmins or learned individuals (of the foremost among the twice-born (dvija))

(noun)

Genitive, masculine, plural of dvijāgrya

dvijāgrya - foremost among the twice-born (dvija); excellent Brahmin

Compound type : tatpuruṣa (dvija+agrya)

• dvija – twice-born (a Brahmin, Kshatriya, or Vaishya); a bird; a tooth
  noun (masculine)
  Prefix: dvi
  Root: jan (class 4)
• agrya – foremost, principal, excellent, best
  adjective
  Root: agra

राकाधर्मामृतत्विषः (rākādharmāmṛtatviṣaḥ) - whose splendor is like the nectar from the full moon and from natural law (dharma)

(adjective)

Genitive, masculine, singular of rākādharmāmṛtatviṣ

rākādharmāmṛtatviṣ - one whose splendor (tviṣ) is like the nectar (amṛta) of the full moon (rākā) and of natural law (dharma)

Compound type : bahuvrīhi (rākā+dharma+amṛta+tviṣ)

• rākā – the full moon, the night of the full moon
  noun (feminine)
  Root: rāj (class 1)
• dharma – natural law, righteousness, virtue, duty, constitutional order
  noun (masculine)
  Root: dhṛ (class 1)
• amṛta – nectar, ambrosia; immortal, imperishable
  noun (neuter)
  Prefix: a
  Root: mṛ (class 6)
• tviṣ – splendor, radiance, luster, light
  noun (feminine)
  Root: tviṣ

Note: Refers to the king in the genitive singular, whose splendor possesses these qualities.