महाभारतः mahābhārataḥ - book-8, chapter-63, verse-35

रत्नानि निधयः सर्वे वेदाश्चाख्यानपञ्चमाः ।
सोपवेदोपनिषदः सरहस्याः ससंग्रहाः ॥३५॥

35. ratnāni nidhayaḥ sarve vedāścākhyānapañcamāḥ ,
sopavedopaniṣadaḥ sarahasyāḥ sasaṁgrahāḥ.

35. ratnāni nidhayaḥ sarve vedāḥ ca ākhyānapañcamāḥ
sa-upaveda-upaniṣadaḥ sa-rahasyāḥ sa-saṃgrahāḥ

35. sarve ratnāni nidhayaḥ ca ākhyānapañcamāḥ
sa-upaveda-upaniṣadaḥ sa-rahasyāḥ sa-saṃgrahāḥ vedāḥ

35. All jewels and treasures, along with the Vedas — which have narratives (ākhyāna) as their fifth component, and are accompanied by the Upavedas, Upaniṣads, secret teachings, and various collections.

Words meanings summery:

• रत्नानि (ratnāni) - jewels, gems, treasures

• निधयः (nidhayaḥ) - treasures, repositories, funds

• सर्वे (sarve) - all, whole, every

• वेदाः (vedāḥ) - Vedas (sacred texts)

• च (ca) - and, also

• आख्यानपञ्चमाः (ākhyānapañcamāḥ) - Referring to the Vedas, implying that Itihasas (narratives like Mahabharata, Ramayana) are considered a 'fifth Veda'. (having narratives/legends as their fifth (part))

• स-उपवेद-उपनिषदः (sa-upaveda-upaniṣadaḥ) - Describing the completeness of the knowledge systems. (with Upavedas and Upaniṣads)

• स-रहस्याः (sa-rahasyāḥ) - Further describing the profound nature of the knowledge. (with secret doctrines/mysteries)

• स-संग्रहाः (sa-saṁgrahāḥ) - Indicating the comprehensive nature of the knowledge systems. (with collections/compendiums)

Words meanings and morphology

रत्नानि (ratnāni) - jewels, gems, treasures

(noun)

Nominative, neuter, plural of ratna

ratna - jewel, gem, precious stone, treasure

निधयः (nidhayaḥ) - treasures, repositories, funds

(noun)

Nominative, masculine, plural of nidhi

nidhi - treasure, store, fund, receptacle, a semi-divine treasure (e.g., of Kubera)

From ni-dhā (to place down, store)

Prefix: ni

Root: dhā (class 3)

सर्वे (sarve) - all, whole, every

(pronoun)

Nominative, masculine, plural of sarva

sarva - all, every, whole, complete

वेदाः (vedāḥ) - Vedas (sacred texts)

(noun)

Nominative, masculine, plural of veda

veda - Veda (sacred knowledge, especially the four collections of hymns and sacrificial formulas), knowledge, sacred lore

From root vid (to know)

Root: vid (class 2)

च (ca) - and, also

(indeclinable)

आख्यानपञ्चमाः (ākhyānapañcamāḥ) - Referring to the Vedas, implying that Itihasas (narratives like Mahabharata, Ramayana) are considered a 'fifth Veda'. (having narratives/legends as their fifth (part))

(adjective)

Nominative, masculine, plural of ākhyānapañcama

ākhyānapañcama - having ākhyāna (narratives/legends) as the fifth; fifth in relation to narratives

Bahuvrīhi compound: ākhyāna (narrative) + pañcama (fifth)

Compound type : bahuvrīhi (ākhyāna+pañcama)

• ākhyāna – narrative, tale, legend, history
  noun (neuter)
  From ā-khyā (to tell)
  Prefix: ā
  Root: khyā (class 2)
• pañcama – fifth
  adjective (masculine)
  Ordinal number from pañcan (five)

स-उपवेद-उपनिषदः (sa-upaveda-upaniṣadaḥ) - Describing the completeness of the knowledge systems. (with Upavedas and Upaniṣads)

(adjective)

Nominative, masculine, plural of sopavedopaniṣad

sopavedopaniṣad - accompanied by Upavedas and Upaniṣads

Bahuvrīhi compound with prefix sa (with) and dvandva compound upaveda-upaniṣad

Compound type : bahuvrīhi (sa+upaveda+upaniṣad)

• sa – with, accompanied by, together with
  indeclinable
• upaveda – a minor Veda (e.g., Ayurveda, Dhanurveda, Gandharvaveda, Arthashastra)
  noun (masculine)
  Compound of upa (subordinate) and veda (knowledge)
  Prefix: upa
• upaniṣad – Upaniṣad (philosophical treatises forming part of the Vedas), secret doctrine
  noun (feminine)
  From upa-ni-sad (to sit down near)
  Prefixes: upa+ni
  Root: sad (class 1)

स-रहस्याः (sa-rahasyāḥ) - Further describing the profound nature of the knowledge. (with secret doctrines/mysteries)

(adjective)

Nominative, masculine, plural of sarahasya

sarahasya - accompanied by secret doctrines; with secrets

Bahuvrīhi compound with prefix sa (with) and rahasya (secret)

Compound type : bahuvrīhi (sa+rahasya)

• sa – with, accompanied by, together with
  indeclinable
• rahasya – secret, mystery, esoteric doctrine
  noun (neuter)
  From rahas (secrecy, privacy)

स-संग्रहाः (sa-saṁgrahāḥ) - Indicating the comprehensive nature of the knowledge systems. (with collections/compendiums)

(adjective)

Nominative, masculine, plural of sasaṃgraha

sasaṁgraha - accompanied by collections/compendiums

Bahuvrīhi compound with prefix sa (with) and saṃgraha (collection)

Compound type : bahuvrīhi (sa+saṃgraha)

• sa – with, accompanied by, together with
  indeclinable
• saṃgraha – collection, compendium, summary, accumulation
  noun (masculine)
  From sam-grah (to seize, collect)
  Prefix: sam
  Root: grah (class 9)