महाभारतः mahābhārataḥ - book-12, chapter-280, verse-3

आयुर्नसुलभं लब्ध्वा नावकर्षेद्विशां पते ।
उत्कर्षार्थं प्रयतते नरः पुण्येन कर्मणा ॥३॥

3. āyurnasulabhaṁ labdhvā nāvakarṣedviśāṁ pate ,
utkarṣārthaṁ prayatate naraḥ puṇyena karmaṇā.

3. āyuḥ na sulabham labdhvā na avakarṣet viśām pate
utkarṣārtham prayatate naraḥ puṇyena karmaṇā

3. viśām pate na sulabham āyuḥ labdhvā na avakarṣet
naraḥ puṇyena karmaṇā utkarṣārtham prayatate

3. O ruler of the people, having attained this precious and not easily obtainable human life, one should not allow it to decline or be wasted. A person should strive for their own advancement and improvement through meritorious action (karma).

Words meanings summery:

• आयुः (āyuḥ) - human life (life, lifespan)

• न (na) - not

• सुलभम् (sulabham) - not easily obtainable (rare) (easily obtainable, accessible)

• लब्ध्वा (labdhvā) - having obtained, having gained

• न (na) - not

• अवकर्षेत् (avakarṣet) - one should not allow it to decline or be wasted (one should degrade, diminish, pull down)

• विशाम् (viśām) - of the people, of the subjects

• पते (pate) - O lord, O master, O ruler

• उत्कर्षार्थम् (utkarṣārtham) - for the sake of exaltation, for improvement

• प्रयतते (prayatate) - strives, endeavors, attempts

• नरः (naraḥ) - a man, a person

• पुण्येन (puṇyena) - by meritorious, by virtuous

• कर्मणा (karmaṇā) - by action (karma), by deed

Words meanings and morphology

आयुः (āyuḥ) - human life (life, lifespan)

(noun)

Accusative, neuter, singular of āyus

āyus - life, vitality, duration of life, longevity

न (na) - not

(indeclinable)

सुलभम् (sulabham) - not easily obtainable (rare) (easily obtainable, accessible)

(adjective)

Accusative, neuter, singular of sulabha

sulabha - easy to obtain, easy to get, accessible

Compound type : karmadhāraya (su+labha)

• su – good, well, easily, very
  indeclinable
• labha – obtaining, gaining, acquisition
  noun (masculine)
  verbal noun from labh
  root labh + suffix -a
  Root: labh (class 1)

लब्ध्वा (labdhvā) - having obtained, having gained

(indeclinable)

gerund/absolutive

root labh + suffix -tvā

Root: labh (class 1)

न (na) - not

(indeclinable)

अवकर्षेत् (avakarṣet) - one should not allow it to decline or be wasted (one should degrade, diminish, pull down)

(verb)

3rd person , singular, active, optative (liṅ) of avakṛṣ

Prefix: ava

Root: kṛṣ (class 1)

विशाम् (viśām) - of the people, of the subjects

(noun)

Genitive, feminine, plural of viś

viś - people, inhabitants, subjects

पते (pate) - O lord, O master, O ruler

(noun)

Vocative, masculine, singular of pati

pati - lord, master, husband, ruler

उत्कर्षार्थम् (utkarṣārtham) - for the sake of exaltation, for improvement

(indeclinable)

Compound type : tatpuruṣa (utkarṣa+artha)

• utkarṣa – excellence, exaltation, prosperity, improvement, superiority
  noun (masculine)
• artha – purpose, meaning, object, wealth
  noun (masculine)

Note: Adverbial accusative

प्रयतते (prayatate) - strives, endeavors, attempts

(verb)

3rd person , singular, middle, present (laṭ) of prayat

Prefix: pra

Root: yat (class 1)

नरः (naraḥ) - a man, a person

(noun)

Nominative, masculine, singular of nara

nara - man, person, human being

पुण्येन (puṇyena) - by meritorious, by virtuous

(adjective)

Instrumental, neuter, singular of puṇya

puṇya - meritorious, virtuous, sacred, pure, good deed

कर्मणा (karmaṇā) - by action (karma), by deed

(noun)

Instrumental, neuter, singular of karman

karman - action, deed, work, fate, ritual (karma)

Root: kṛ (class 8)