योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-54, verse-29

देशकालक्रियाद्रव्यशुद्ध्यशुद्धी स्वकर्मणाम् ।
न्यूनत्वे चाधिकत्वे च नृणां कारणमायुषः ॥ २९ ॥

deśakālakriyādravyaśuddhyaśuddhī svakarmaṇām ,
nyūnatve cādhikatve ca nṛṇāṃ kāraṇamāyuṣaḥ 29

29. deśakālakriyādravyaśuddhyaśuddhī svakarmaṇām
nyūnatve ca adhikatve ca nṛṇām kāraṇam āyuṣaḥ

29. svakarmaṇām deśakālakriyādravyaśuddhyaśuddhī
nṛṇām āyuṣaḥ nyūnatve ca adhikatve ca kāraṇam

29. The purity and impurity of place, time, action, and substance concerning one's own actions (karma) are the cause for the deficiency or excess of life-span (āyuṣ) for human beings.

Words meanings summery:

• देशकालक्रियाद्रव्यशुद्ध्यशुद्धी (deśakālakriyādravyaśuddhyaśuddhī) - the purity and impurity of place, time, action, and substance

• स्वकर्मणाम् (svakarmaṇām) - of one's own actions (karma)

• न्यूनत्वे (nyūnatve) - in deficiency, in smallness, in reduction

• च (ca) - and

• अधिकत्वे (adhikatve) - in excess, in abundance, in increase

• च (ca) - and

• नृणाम् (nṛṇām) - of human beings, of men

• कारणम् (kāraṇam) - the cause, the reason

• आयुषः (āyuṣaḥ) - of life, of duration, of age

Words meanings and morphology

देशकालक्रियाद्रव्यशुद्ध्यशुद्धी (deśakālakriyādravyaśuddhyaśuddhī) - the purity and impurity of place, time, action, and substance

(noun)

Nominative, feminine, dual of deśakālakriyādravyaśuddhyaśuddhi

deśakālakriyādravyaśuddhyaśuddhi - the states of purity and impurity pertaining to place, time, action, and substance

Dvandva compound of 'śuddhi' and 'aśuddhi' preceded by a compound listing elements.

Compound type : dvandva (deśa+kāla+kriyā+dravya+śuddhi+aśuddhi)

• deśa – place, region, country
  noun (masculine)
• kāla – time, season
  noun (masculine)
• kriyā – action, activity, rite
  noun (feminine)
  Action noun from root 'kṛ'
  Root: kṛ (class 8)
• dravya – substance, material, wealth
  noun (neuter)
  Root: dru (class 1)
• śuddhi – purity, purification, correctness
  noun (feminine)
  Action noun from root 'śudh'
  Root: śudh (class 4)
• aśuddhi – impurity, uncleanness, incorrectness
  noun (feminine)
  Negation of 'śuddhi'
  Prefix: a
  Root: śudh (class 4)

स्वकर्मणाम् (svakarmaṇām) - of one's own actions (karma)

(noun)

Genitive, neuter, plural of svakarman

svakarman - one's own action or duty

Tatpuruṣa compound

Compound type : tatpuruṣa (sva+karman)

• sva – one's own, self
  pronoun
• karman – action, deed, work, ritual action, effect of past actions (karma)
  noun (neuter)
  Root: kṛ (class 8)

न्यूनत्वे (nyūnatve) - in deficiency, in smallness, in reduction

(noun)

Locative, neuter, singular of nyūnatva

nyūnatva - the state of being deficient or less

Formed by adding the suffix -tva to 'nyūna'

Compound type : tatpuruṣa (nyūna+tva)

• nyūna – deficient, less, imperfect
  adjective
  Past Passive Participle
  Past passive participle of root 'yu' with prefix 'ni'
  Prefix: ni
  Root: yu (class 2)
• tva – suffix denoting state or abstract quality; -ness, -hood
  suffix (neuter)
  Abstract noun forming suffix

च (ca) - and

(indeclinable)

अधिकत्वे (adhikatve) - in excess, in abundance, in increase

(noun)

Locative, neuter, singular of adhikatva

adhikatva - the state of being in excess or abundant

Formed by adding the suffix -tva to 'adhika'

Compound type : tatpuruṣa (adhika+tva)

• adhika – excessive, abundant, more
  adjective
  Prefix: adhi
  Root: dhik (class 1)
• tva – suffix denoting state or abstract quality; -ness, -hood
  suffix (neuter)
  Abstract noun forming suffix

च (ca) - and

(indeclinable)

नृणाम् (nṛṇām) - of human beings, of men

(noun)

Genitive, masculine, plural of nṛ

nṛ - man, human being

कारणम् (kāraṇam) - the cause, the reason

(noun)

Nominative, neuter, singular of kāraṇa

kāraṇa - cause, reason, instrument

Action noun from root 'kṛ'

Root: kṛ (class 8)

आयुषः (āyuṣaḥ) - of life, of duration, of age

(noun)

Genitive, neuter, singular of āyuṣ

āyuṣ - life, life-span, duration, age