महाभारतः mahābhārataḥ - book-12, chapter-127, verse-9

यम उवाच ।
तपःशौचवता नित्यं सत्यधर्मरतेन च ।
मातापित्रोरहरहः पूजनं कार्यमञ्जसा ॥९॥

9. yama uvāca ,
tapaḥśaucavatā nityaṁ satyadharmaratena ca ,
mātāpitroraharahaḥ pūjanaṁ kāryamañjasā.

9. yamaḥ uvāca tapaḥśaucavatā nityam satyadharmaratena
ca mātāpitroḥ aharahaḥ pūjanam kāryam añjasā

9. yamaḥ uvāca.
tapaḥśaucavatā nityam satyadharmaratena ca mātāpitroḥ aharahaḥ pūjanam añjasā kāryam

9. Yama said: "By one who possesses austerity (tapas) and purity, and who is constantly devoted to truth and natural law (dharma), the service of parents should be performed properly day after day."

Words meanings summery:

• यमः (yamaḥ) - Yama (the god of death and justice)

• उवाच (uvāca) - said, spoke

• तपःशौचवता (tapaḥśaucavatā) - by one possessing austerity and purity

• नित्यम् (nityam) - always, constantly

• सत्यधर्मरतेन (satyadharmaratena) - by one devoted to truth and natural law

• च (ca) - and, also

• मातापित्रोः (mātāpitroḥ) - of parents

• अहरहः (aharahaḥ) - day after day, daily

• पूजनम् (pūjanam) - worship, service, veneration

• कार्यम् (kāryam) - should be done, proper to be done, duty

• अञ्जसा (añjasā) - properly, easily, quickly, truly

Words meanings and morphology

यमः (yamaḥ) - Yama (the god of death and justice)

(proper noun)

Nominative, masculine, singular of yama

yama - Yama, rein, restraint, twin

Root: yam (class 1)

उवाच (uvāca) - said, spoke

(verb)

3rd person , singular, active, past perfect (liṭ) of vac

Perfect

3rd person singular, active voice, perfect tense, from root vac (2nd class)

Root: vac (class 2)

तपःशौचवता (tapaḥśaucavatā) - by one possessing austerity and purity

(adjective)

Instrumental, masculine, singular of tapaḥśaucavat

tapaḥśaucavat - possessing austerity and purity

Bahuvrihi compound formed with the possessive suffix -vat

Compound type : bahuvrīhi (tapas+śauca)

• tapas – austerity, penance, heat
  noun (neuter)
  Root: tap (class 1)
• śauca – purity, cleanliness
  noun (neuter)
  Root: śuc (class 1)

नित्यम् (nityam) - always, constantly

(indeclinable)

Note: Used adverbially here.

सत्यधर्मरतेन (satyadharmaratena) - by one devoted to truth and natural law

(adjective)

Instrumental, masculine, singular of satyadharmarata

satyadharmarata - devoted to truth and dharma

Compound of satya, dharma, and rata (past passive participle)

Compound type : tatpuruṣa (satya+dharma+rata)

• satya – truth, true
  noun (neuter)
  Root: as (class 2)
• dharma – natural law, duty, righteousness, virtue
  noun (masculine)
  Root: dhṛ (class 1)
• rata – devoted, attached, delighting in
  adjective (masculine)
  Past Passive Participle
  Derived from root ram
  Root: ram (class 1)

च (ca) - and, also

(indeclinable)

मातापित्रोः (mātāpitroḥ) - of parents

(noun)

Genitive, dual of mātāpitṛ

mātāpitṛ - parents (mother and father)

Compound type : dvandva (mātṛ+pitṛ)

• mātṛ – mother
  noun (feminine)
• pitṛ – father
  noun (masculine)

अहरहः (aharahaḥ) - day after day, daily

(indeclinable)

Repetitive compound (dvandva or avyayībhāva)

पूजनम् (pūjanam) - worship, service, veneration

(noun)

Nominative, neuter, singular of pūjana

pūjana - worship, adoration, service, honor

Derived from root pūj

Root: pūj (class 10)

कार्यम् (kāryam) - should be done, proper to be done, duty

(adjective)

Nominative, neuter, singular of kārya

kārya - to be done, duty, action, business

Gerundive

Derived from root kṛ with suffix -ya (kṛtya)

Root: kṛ (class 8)

अञ्जसा (añjasā) - properly, easily, quickly, truly

(indeclinable)