महाभारतः mahābhārataḥ - book-5, chapter-38, verse-31

विद्याशीलवयोवृद्धान्बुद्धिवृद्धांश्च भारत ।
धनाभिजनवृद्धांश्च नित्यं मूढोऽवमन्यते ॥३१॥

31. vidyāśīlavayovṛddhānbuddhivṛddhāṁśca bhārata ,
dhanābhijanavṛddhāṁśca nityaṁ mūḍho'vamanyate.

31. vidyāśīlavayovṛddhān buddhivṛddhān ca bhārata
dhana-abhijana-vṛddhān ca nityam mūḍhaḥ avamanyate

31. O Bhārata, a foolish person always disregards those who are venerable due to their knowledge, moral character, and age; those who are advanced in wisdom; and those who are distinguished by wealth and noble lineage.

Words meanings summery:

• विद्याशीलवयोवृद्धान् (vidyāśīlavayovṛddhān) - those venerable due to their knowledge, moral character, and age (those grown old in learning, character, and age; venerable due to these qualities)

• बुद्धिवृद्धान् (buddhivṛddhān) - those advanced in wisdom (those advanced in intellect/wisdom)

• च (ca) - and (and, also)

• भारत (bhārata) - O Bhārata (a common address for Arjuna in the Mahabharata) (O descendant of Bharata, O Arjuna)

• धनाभिजनवृद्धान् (dhanābhijanavṛddhān) - those distinguished by wealth and noble lineage (those advanced in wealth and lineage)

• च (ca) - and (and, also)

• नित्यम् (nityam) - always (always, constantly, perpetually)

• मूढः (mūḍhaḥ) - a foolish person (foolish, stupid, ignorant person, fool)

• अवमन्यते (avamanyate) - disregards, despises (he despises, disregards, disrespects)

Words meanings and morphology

विद्याशीलवयोवृद्धान् (vidyāśīlavayovṛddhān) - those venerable due to their knowledge, moral character, and age (those grown old in learning, character, and age; venerable due to these qualities)

(adjective)

Accusative, masculine, plural of vidyāśīlavayovṛddha

vidyāśīlavayovṛddha - advanced in learning, character, and age

Compound type : bahuvrīhi (vidyā+śīla+vayas+vṛddha)

• vidyā – knowledge, learning, science
  noun (feminine)
• śīla – character, conduct, habit, virtue
  noun (neuter)
• vayas – age, youth, period of life
  noun (neuter)
• vṛddha – old, aged, grown, increased, venerable
  adjective (masculine)
  Past Passive Participle
  From root vṛdh
  Root: vṛdh (class 1)

Note: Object of avamanyate

बुद्धिवृद्धान् (buddhivṛddhān) - those advanced in wisdom (those advanced in intellect/wisdom)

(adjective)

Accusative, masculine, plural of buddhivṛddha

buddhivṛddha - advanced in intellect, wise, experienced

Compound type : tatpuruṣa (buddhi+vṛddha)

• buddhi – intelligence, intellect, discernment, understanding
  noun (feminine)
  Root: budh (class 1)
• vṛddha – old, aged, grown, increased, venerable
  adjective (masculine)
  Past Passive Participle
  From root vṛdh
  Root: vṛdh (class 1)

Note: Object of avamanyate

च (ca) - and (and, also)

(indeclinable)

Note: Conjunction.

भारत (bhārata) - O Bhārata (a common address for Arjuna in the Mahabharata) (O descendant of Bharata, O Arjuna)

(proper noun)

Vocative, masculine, singular of bhārata

bhārata - descendant of Bharata, Indian, Arjuna

धनाभिजनवृद्धान् (dhanābhijanavṛddhān) - those distinguished by wealth and noble lineage (those advanced in wealth and lineage)

(adjective)

Accusative, masculine, plural of dhanābhijanavṛddha

dhanābhijanavṛddha - advanced in wealth and noble birth

Compound type : bahuvrīhi (dhana+abhijana+vṛddha)

• dhana – wealth, riches, money
  noun (neuter)
• abhijana – noble birth, lineage, family
  noun (masculine)
  From abhi-jan
  Prefix: abhi
  Root: jan (class 4)
• vṛddha – old, aged, grown, increased, venerable
  adjective (masculine)
  Past Passive Participle
  From root vṛdh
  Root: vṛdh (class 1)

Note: Object of avamanyate

च (ca) - and (and, also)

(indeclinable)

Note: Conjunction.

नित्यम् (nityam) - always (always, constantly, perpetually)

(indeclinable)

Note: Adverb.

मूढः (mūḍhaḥ) - a foolish person (foolish, stupid, ignorant person, fool)

(noun)

Nominative, masculine, singular of mūḍha

mūḍha - foolish, stupid, ignorant, bewildered, fool

Past Passive Participle

From root muh

Root: muh (class 4)

Note: Subject of avamanyate

अवमन्यते (avamanyate) - disregards, despises (he despises, disregards, disrespects)

(verb)

3rd person , singular, middle, present indicative (laṭ) of avaman

Prefix: ava

Root: man (class 4)

Note: The verb takes accusative objects.