महाभारतः mahābhārataḥ - book-7, chapter-118, verse-10

आर्येण सुकरं ह्याहुरार्यकर्म धनंजय ।
अनार्यकर्म त्वार्येण सुदुष्करतरं भुवि ॥१०॥

10. āryeṇa sukaraṁ hyāhurāryakarma dhanaṁjaya ,
anāryakarma tvāryeṇa suduṣkarataraṁ bhuvi.

10. āryeṇa sukaram hi āhuḥ āryakarma dhanañjaya
anāryakarma tu āryeṇa suduṣkarataram bhuvi

10. dhanañjaya āryakarma āryeṇa sukaram hi āhuḥ
tu anāryakarma āryeṇa bhuvi suduṣkarataram

10. O Dhanañjaya, indeed, they say that a noble act is easy for a noble person to perform. But an ignoble act is exceedingly more difficult for a noble person to accomplish on earth.

Words meanings summery:

• आर्येण (āryeṇa) - by a noble person

• सुकरम् (sukaram) - easy to do, easily done

• हि (hi) - indeed, surely, for

• आहुः (āhuḥ) - they say, they speak

• आर्यकर्म (āryakarma) - noble deed, act of a noble person

• धनञ्जय (dhanañjaya) - O Dhanañjaya (conqueror of wealth), O Arjuna

• अनार्यकर्म (anāryakarma) - ignoble deed, act of an ignoble person

• तु (tu) - but, however, indeed

• आर्येण (āryeṇa) - by a noble person

• सुदुष्करतरम् (suduṣkarataram) - exceedingly more difficult/improper

• भुवि (bhuvi) - on earth, in the world

Words meanings and morphology

आर्येण (āryeṇa) - by a noble person

(noun)

Instrumental, masculine, singular of ārya

ārya - noble, honorable person

सुकरम् (sukaram) - easy to do, easily done

(adjective)

Nominative, neuter, singular of sukara

sukara - easy to do

Compound type : tatpuruṣa (su+kara)

• su – well, good, easily
  indeclinable
• kara – making, doing, performing
  adjective (neuter)
  Agent Noun Suffix
  derived from √kṛ
  Root: √kṛ (class 8)

हि (hi) - indeed, surely, for

(indeclinable)

आहुः (āhuḥ) - they say, they speak

(verb)

3rd person , plural, active, perfect (lit) of brū

irregular verb form for āha/āhuḥ from √brū

Root: √brū (class 2)

आर्यकर्म (āryakarma) - noble deed, act of a noble person

(noun)

Nominative, neuter, singular of āryakarman

āryakarman - noble deed

Compound type : tatpuruṣa (ārya+karman)

• ārya – noble
  adjective (masculine)
• karman – deed, action (karma)
  noun (neuter)

धनञ्जय (dhanañjaya) - O Dhanañjaya (conqueror of wealth), O Arjuna

(proper noun)

Vocative, masculine, singular of dhanañjaya

dhanañjaya - conqueror of wealth, Arjuna

अनार्यकर्म (anāryakarma) - ignoble deed, act of an ignoble person

(noun)

Nominative, neuter, singular of anāryakarman

anāryakarman - ignoble deed

Compound type : tatpuruṣa (anārya+karman)

• anārya – ignoble, not noble
  adjective (masculine)
• karman – deed, action (karma)
  noun (neuter)

तु (tu) - but, however, indeed

(indeclinable)

आर्येण (āryeṇa) - by a noble person

(noun)

Instrumental, masculine, singular of ārya

ārya - noble, honorable person

सुदुष्करतरम् (suduṣkarataram) - exceedingly more difficult/improper

(adjective)

Nominative, neuter, singular of suduṣkaratara

suduṣkaratara - exceedingly more difficult

Comparative Degree

derived from duṣkara with suffix -tara

Compound type : tatpuruṣa (su+duṣkaratara)

• su – well, very, exceedingly
  indeclinable
• duṣkaratara – more difficult, more improper
  adjective (neuter)
  Comparative Degree
  derived from duṣkara with suffix -tara

भुवि (bhuvi) - on earth, in the world

(noun)

Locative, feminine, singular of bhū

bhū - earth, ground, world