महाभारतः mahābhārataḥ - book-5, chapter-35, verse-65

बुद्धिश्रेष्ठानि कर्माणि बाहुमध्यानि भारत ।
तानि जङ्घाजघन्यानि भारप्रत्यवराणि च ॥६५॥

65. buddhiśreṣṭhāni karmāṇi bāhumadhyāni bhārata ,
tāni jaṅghājaghanyāni bhārapratyavarāṇi ca.

65. buddhiśreṣṭhāni karmāṇi bāhumadhyāni bhārata
| tāni jaṅghājaghanyāni bhārapratyavarāṇi ca

65. O descendant of Bhārata, actions (karma) are supreme when guided by intelligence, mediocre when performed by physical strength, and the lowest when they involve mere leg-work or carrying burdens.

Words meanings summery:

• बुद्धिश्रेष्ठानि (buddhiśreṣṭhāni) - supreme when guided by intelligence (best by intelligence, intelligence-supreme)

• कर्माणि (karmāṇi) - actions, deeds, activities (karma)

• बाहुमध्यानि (bāhumadhyāni) - average when performed with physical strength (average by arms, arm-middling)

• भारत (bhārata) - Addressing Dhṛtarāṣṭra (O Bhārata, O descendant of Bharata)

• तानि (tāni) - those (actions) (those)

• जङ्घाजघन्यानि (jaṅghājaghanyāni) - lowest when involving mere leg-work (lowest by legs/leg-work)

• भारप्रत्यवराणि (bhārapratyavarāṇi) - lowest when involving carrying burdens (lowest by burden, meanest by carrying loads)

• च (ca) - and, also

Words meanings and morphology

बुद्धिश्रेष्ठानि (buddhiśreṣṭhāni) - supreme when guided by intelligence (best by intelligence, intelligence-supreme)

(adjective)

Nominative, neuter, plural of buddhiśreṣṭha

buddhiśreṣṭha - best by intellect, chief by understanding

Compound type : tatpuruṣa (buddhi+śreṣṭha)

• buddhi – intellect, understanding, discernment
  noun (feminine)
  Root: budh (class 1)
• śreṣṭha – best, most excellent, supreme
  adjective (masculine)
  Superlative of praśasya

Note: Modifies karmāṇi.

कर्माणि (karmāṇi) - actions, deeds, activities (karma)

(noun)

Nominative, neuter, plural of karma

karma - action, deed, work, effect of action (karma)

From root kṛ

Root: kṛ (class 8)

बाहुमध्यानि (bāhumadhyāni) - average when performed with physical strength (average by arms, arm-middling)

(adjective)

Nominative, neuter, plural of bāhumadhya

bāhumadhya - middling by arms, average by strength

Compound type : tatpuruṣa (bāhu+madhya)

• bāhu – arm, fore-arm
  noun (masculine)
• madhya – middle, mediocre, average
  adjective (neuter)

Note: Modifies karmāṇi.

भारत (bhārata) - Addressing Dhṛtarāṣṭra (O Bhārata, O descendant of Bharata)

(proper noun)

Vocative, masculine, singular of bhārata

bhārata - descendant of Bharata, relating to Bharata, India

Root: bhṛ (class 3)

तानि (tāni) - those (actions) (those)

(pronoun)

Nominative, neuter, plural of tad

tad - that, those

जङ्घाजघन्यानि (jaṅghājaghanyāni) - lowest when involving mere leg-work (lowest by legs/leg-work)

(adjective)

Nominative, neuter, plural of jaṅghājaghanya

jaṅghājaghanya - lowest by thighs/legs, meanest by mere movement

Compound type : tatpuruṣa (jaṅghā+jaghanya)

• jaṅghā – leg, shank
  noun (feminine)
• jaghanya – hindmost, lowest, meanest, worst
  adjective (neuter)

Note: Modifies karmāṇi.

भारप्रत्यवराणि (bhārapratyavarāṇi) - lowest when involving carrying burdens (lowest by burden, meanest by carrying loads)

(adjective)

Nominative, neuter, plural of bhārapratyavara

bhārapratyavara - inferior by weight/burden, lowest by carrying loads

Compound type : tatpuruṣa (bhāra+pratyavara)

• bhāra – burden, load, weight
  noun (masculine)
  Root: bhṛ (class 3)
• pratyavara – inferior, mean, lowest
  adjective (masculine)
  From prati + avara
  Prefix: prati

Note: Modifies karmāṇi.

च (ca) - and, also

(indeclinable)