महाभारतः mahābhārataḥ - book-14, chapter-45, verse-17

देवतातिथिशिष्टाशी निरतो वेदकर्मसु ।
इज्याप्रदानयुक्तश्च यथाशक्ति यथाविधि ॥१७॥

17. devatātithiśiṣṭāśī nirato vedakarmasu ,
ijyāpradānayuktaśca yathāśakti yathāvidhi.

17. devatātithiśiṣṭāśī nirataḥ vedakarmasu
ijyāpradānayuktaḥ ca yathāśakti yathāvidhi

17. devatātithiśiṣṭāśī nirataḥ vedakarmasu
ijyāpradānayuktaḥ ca yathāśakti yathāvidhi

17. One should be devoted to Vedic rites, eating only after serving the deities, guests, and respected individuals. He should also be engaged in performing (Vedic rituals) and making donations (dāna), doing so according to his capacity and in accordance with the prescribed rules.

Words meanings summery:

• देवतातिथिशिष्टाशी (devatātithiśiṣṭāśī) - one who eats after the deities, guests, and respected individuals

• निरतः (nirataḥ) - devoted, engaged in

• वेदकर्मसु (vedakarmasu) - in Vedic rites/actions

• इज्याप्रदानयुक्तः (ijyāpradānayuktaḥ) - engaged in offering (Vedic rituals) and giving (gifts)

• च (ca) - and

• यथाशक्ति (yathāśakti) - according to one's ability/capacity

• यथाविधि (yathāvidhi) - according to rule/scripture

Words meanings and morphology

देवतातिथिशिष्टाशी (devatātithiśiṣṭāśī) - one who eats after the deities, guests, and respected individuals

(adjective)

Nominative, masculine, singular of devatātithiśiṣṭāśin

devatātithiśiṣṭāśin - one who eats after deities, guests, and the remnants of food from the disciplined/respected

Compound type : bahuvrīhi (devatā+atithi+śiṣṭa+āśin)

• devatā – deity, divinity
  noun (feminine)
• atithi – guest
  noun (masculine)
• śiṣṭa – disciplined, cultured, respectable, remnant (food)
  adjective (masculine)
  Past Passive Participle
  From root śiṣ (to instruct, discipline)
  Root: śiṣ (class 7)
• āśin – eating, one who eats
  adjective (masculine)
  Agent noun / adjective from root aś
  From root aś (to eat) with suffix -in
  Root: aś (class 9)

निरतः (nirataḥ) - devoted, engaged in

(adjective)

Nominative, masculine, singular of nirata

nirata - devoted, engaged, absorbed in

Past Passive Participle

From root ram (to delight) with prefix ni

Prefix: ni

Root: ram (class 1)

वेदकर्मसु (vedakarmasu) - in Vedic rites/actions

(noun)

Locative, neuter, plural of vedakarman

vedakarman - Vedic rite, religious act prescribed by the Vedas

Compound type : tatpuruṣa (veda+karman)

• veda – Veda, sacred knowledge
  noun (masculine)
• karman – action, deed, rite, religious act
  noun (neuter)

इज्याप्रदानयुक्तः (ijyāpradānayuktaḥ) - engaged in offering (Vedic rituals) and giving (gifts)

(adjective)

Nominative, masculine, singular of ijyāpradānayukta

ijyāpradānayukta - engaged in (Vedic ritual) and donation

Compound type : tatpuruṣa (ijyā+pradāna+yukta)

• ijyā – (Vedic ritual), worship, offering
  noun (feminine)
  Root: yaj (class 1)
• pradāna – giving, donation, gift
  noun (neuter)
  Prefix: pra
  Root: dā (class 3)
• yukta – joined, endowed with, engaged in
  adjective (masculine)
  Past Passive Participle
  From root yuj (to join)
  Root: yuj (class 7)

च (ca) - and

(indeclinable)

यथाशक्ति (yathāśakti) - according to one's ability/capacity

(indeclinable)

Compound type : avyayībhāva (yathā+śakti)

• yathā – as, according to, in such a manner as
  indeclinable
• śakti – power, ability, energy (śakti)
  noun (feminine)

यथाविधि (yathāvidhi) - according to rule/scripture

(indeclinable)

Compound type : avyayībhāva (yathā+vidhi)

• yathā – as, according to, in such a manner as
  indeclinable
• vidhi – rule, injunction, method, manner
  noun (masculine)