योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-45, verse-3

अविनाशरसाधारं सुधामधुरसारवत् ।
पुराणमपि बालेन्दुदलमार्दवसुन्दरम् ॥ ३ ॥

avināśarasādhāraṃ sudhāmadhurasāravat ,
purāṇamapi bālendudalamārdavasundaram 3

3. avināśarasādhāram sudhāmadhurasāravat
purāṇam api bālendudalamārdavasundaram

3. avināśarasādhāram sudhāmadhurasāravat
purāṇam api bālendudalamārdavasundaram

3. It is the foundation of imperishable essence, possesses the sweet core of nectar, and although ancient, it is beautiful with the tenderness of a new moon's crescent.

Words meanings summery:

• अविनाशरसाधारम् (avināśarasādhāram) - foundation of imperishable essence

• सुधामधुरसारवत् (sudhāmadhurasāravat) - possessing the sweet core of nectar

• पुराणम् (purāṇam) - although ancient (ancient, old)

• अपि (api) - introduces a contrasting idea (ancient yet beautiful) (even, although)

• बालेन्दुदलमार्दवसुन्दरम् (bālendudalamārdavasundaram) - beautiful with the tenderness of a new moon's crescent

Words meanings and morphology

अविनाशरसाधारम् (avināśarasādhāram) - foundation of imperishable essence

(adjective)

Nominative, neuter, singular of avināśarasādhāra

avināśarasādhāra - foundation of imperishable essence; containing the immortal taste

Compound type : tatpuruṣa (avināśa+rasa+ādhāra)

• avināśa – imperishable, indestructible
  adjective (masculine)
  From 'a' (not) + 'vināśa' (destruction)
• rasa – essence, juice, taste, sentiment
  noun (masculine)
• ādhāra – support, basis, foundation, receptacle
  noun (masculine)
  Prefix: ā
  Root: dhṛ (class 1)

Note: Agrees with implicit 'bilvaphalam'

सुधामधुरसारवत् (sudhāmadhurasāravat) - possessing the sweet core of nectar

(adjective)

Nominative, neuter, singular of sudhāmadhurasāravat

sudhāmadhurasāravat - possessing the sweet essence of nectar; nectar-sweet and full of essence

Possessive adjective formed with -vat suffix

Compound type : bahuvrīhi (sudhāmadhurasāra)

• sudhā – nectar, ambrosia
  noun (feminine)
• madhura – sweet, pleasing
  adjective (masculine)
• sāra – essence, core, pith, strength
  noun (masculine)

Note: Agrees with implicit 'bilvaphalam'

पुराणम् (purāṇam) - although ancient (ancient, old)

(adjective)

Nominative, neuter, singular of purāṇa

purāṇa - ancient, old, former; also a class of religious texts

Note: Agrees with implicit 'bilvaphalam'

अपि (api) - introduces a contrasting idea (ancient yet beautiful) (even, although)

(indeclinable)

बालेन्दुदलमार्दवसुन्दरम् (bālendudalamārdavasundaram) - beautiful with the tenderness of a new moon's crescent

(adjective)

Nominative, neuter, singular of bālendudalamārdavasundara

bālendudalamārdavasundara - beautiful with the tenderness (or softness) of a young moon's crescent

Compound type : bahuvrīhi (bāla+indu+dala+mārdava+sundara)

• bāla – young, infant, new
  adjective (masculine)
• indu – moon, drop
  noun (masculine)
• dala – petal, leaf, part, fragment
  noun (neuter)
• mārdava – softness, tenderness, gentleness
  noun (neuter)
  Derived from 'mṛdu' (soft)
• sundara – beautiful, charming, handsome
  adjective (masculine)

Note: Agrees with implicit 'bilvaphalam'