योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-98, verse-21

समस्तकारणाभावाल्लोकशास्त्रानुभूतिभिः ।
युज्यन्ते च निराकर्तुं न महाप्रलयादयः ॥ २१ ॥

samastakāraṇābhāvāllokaśāstrānubhūtibhiḥ ,
yujyante ca nirākartuṃ na mahāpralayādayaḥ 21

21. samasta-kāraṇa-abhāvāt loka-śāstra-anubhūtibhiḥ
yujyante ca nirākartum na mahā-pralaya-ādayaḥ

21. Great cosmic dissolutions (mahāpralaya) and similar events cannot be refuted, as their occurrence is supported by the absence of all [sustaining] causes and by experiences (anubhūti) derived from both common knowledge and scriptures (śāstra).

Words meanings summery:

• समस्त-कारण-अभावात् (samasta-kāraṇa-abhāvāt) - due to the absence of all sustaining causes (for the world's continued existence) (due to the absence of all causes)

• लोक-शास्त्र-अनुभूतिभिः (loka-śāstra-anubhūtibhiḥ) - by means of experiences (anubhūti) from common knowledge (loka) and scriptures (śāstra) (by common observation, scriptures, and experiences)

• युज्यन्ते (yujyante) - are joined, are fit, are enabled, are supported

• च (ca) - and

• निराकर्तुम् (nirākartum) - to deny, to refute, to remove

• न (na) - not, no

• महा-प्रलय-आदयः (mahā-pralaya-ādayaḥ) - great dissolutions and so on, great cosmic dissolutions etc.

Words meanings and morphology

समस्त-कारण-अभावात् (samasta-kāraṇa-abhāvāt) - due to the absence of all sustaining causes (for the world's continued existence) (due to the absence of all causes)

(noun)

Ablative, masculine, singular of samasta-kāraṇa-abhāva

samasta-kāraṇa-abhāva - absence of all causes, lack of all reasons

Compound type : tatpuruṣa (samasta+kāraṇa+abhāva)

• samasta – all, entire, complete
  adjective
  Past Passive Participle
  Derived from root 'as' (to be) with prefix 'sam'.
  Prefix: sam
  Root: as (class 2)
• kāraṇa – cause, reason, instrument
  noun (neuter)
  Derived from root 'kṛ' (to do, to make).
  Root: kṛ (class 8)
• abhāva – absence, non-existence, annihilation
  noun (masculine)
  Prefix: a
  Root: bhū (class 1)

लोक-शास्त्र-अनुभूतिभिः (loka-śāstra-anubhūtibhiḥ) - by means of experiences (anubhūti) from common knowledge (loka) and scriptures (śāstra) (by common observation, scriptures, and experiences)

(noun)

Instrumental, feminine, plural of loka-śāstra-anubhūti

loka-śāstra-anubhūti - experiences from the world and scriptures

Compound type : dvandva-tatpuruṣa (loka+śāstra+anubhūti)

• loka – world, people, common observation
  noun (masculine)
• śāstra – scripture, treatise, rule, science
  noun (neuter)
• anubhūti – experience, perception, feeling
  noun (feminine)
  Prefix: anu
  Root: bhū (class 1)

युज्यन्ते (yujyante) - are joined, are fit, are enabled, are supported

(verb)

3rd person , plural, middle, present (lat) of yuj

Root: yuj (class 7)

Note: Used in a passive sense here: 'they are made fit' or 'they are supported'.

च (ca) - and

(indeclinable)

निराकर्तुम् (nirākartum) - to deny, to refute, to remove

(indeclinable)

Infinitive

Infinitive form of the verb 'nirā-kṛ'.

Prefixes: nis+ā

Root: kṛ (class 8)

न (na) - not, no

(indeclinable)

महा-प्रलय-आदयः (mahā-pralaya-ādayaḥ) - great dissolutions and so on, great cosmic dissolutions etc.

(noun)

Nominative, masculine, plural of mahā-pralaya-ādi

mahā-pralaya-ādi - great dissolution and others, beginning with great dissolution

Compound type : bahuvrīhi (mahā+pralaya+ādi)

• mahā – great, large, mighty
  adjective
• pralaya – dissolution, destruction, cosmic dissolution
  noun (masculine)
  Prefix: pra
  Root: lī (class 4)
• ādi – beginning, and so on, etcetera
  indeclinable