महाभारतः mahābhārataḥ - book-12, chapter-86, verse-26

यथोक्तवादिनं दूतं क्षत्रधर्मरतो नृपः ।
यो हन्यात्पितरस्तस्य भ्रूणहत्यामवाप्नुयुः ॥२६॥

26. yathoktavādinaṁ dūtaṁ kṣatradharmarato nṛpaḥ ,
yo hanyātpitarastasya bhrūṇahatyāmavāpnuyuḥ.

26. yathoktavādinam dūtam kṣatradharmarataḥ nṛpaḥ
yaḥ hanyāt pitaras tasya bhrūṇahatyām avāpnuyuḥ

26. yaḥ nṛpaḥ kṣatradharmarataḥ (san) yathoktavādinam dūtam hanyāt,
tasya pitaraḥ bhrūṇahatyām avāpnuyuḥ

26. A king devoted to the duty of a warrior (kṣatra-dharma) who would kill a messenger speaking exactly as instructed—his ancestors would incur the sin of killing an embryo (bhrūṇahatyā).

Words meanings summery:

• यथोक्तवादिनम् (yathoktavādinam) - a messenger who faithfully conveys his message exactly as instructed (one who speaks as told, a messenger, an envoy)

• दूतम् (dūtam) - the king's messenger (messenger, envoy, ambassador)

• क्षत्रधर्मरतः (kṣatradharmarataḥ) - a king who upholds the principles of a warrior (kṣatra-dharma) (devoted to the duty of a kṣatriya, adhering to warrior's code)

• नृपः (nṛpaḥ) - the ruler (king, monarch)

• यः (yaḥ) - refers to 'nṛpaḥ' (who, which, that)

• हन्यात् (hanyāt) - should (hypothetically) kill (may kill, should kill, would kill)

• पितरस् (pitaras) - the paternal ancestors of the king (fathers, ancestors)

• तस्य (tasya) - of that (king) (his, of him, its)

• भ्रूणहत्याम् (bhrūṇahatyām) - the grave sin of feticide (the killing of an embryo, feticide, abortion (as a sin))

• अवाप्नुयुः (avāpnuyuḥ) - would incur (the sin) (may obtain, would incur, would reach)

Words meanings and morphology

यथोक्तवादिनम् (yathoktavādinam) - a messenger who faithfully conveys his message exactly as instructed (one who speaks as told, a messenger, an envoy)

(noun)

Accusative, masculine, singular of yathoktavādin

yathoktavādin - one who speaks as instructed, a messenger

derived from yathā + ukta + vādin

Compound type : upapada-tatpuruṣa (yathā+ukta+vādin)

• yathā – as, just as, in what manner
  indeclinable
• ukta – spoken, said, told
  adjective (neuter)
  Past Passive Participle
  root vac + kta
  Root: vac (class 2)
• vādin – speaking, speaker, one who says
  noun (masculine)
  root vad + ṇini
  Root: vad (class 1)

दूतम् (dūtam) - the king's messenger (messenger, envoy, ambassador)

(noun)

Accusative, masculine, singular of dūta

dūta - messenger, envoy, ambassador

root dū + ta

Root: dū

क्षत्रधर्मरतः (kṣatradharmarataḥ) - a king who upholds the principles of a warrior (kṣatra-dharma) (devoted to the duty of a kṣatriya, adhering to warrior's code)

(adjective)

Nominative, masculine, singular of kṣatradharmarata

kṣatradharmarata - devoted to the duty of a kṣatriya/warrior

Compound type : tatpuruṣa (kṣatradharma+rata)

• kṣatradharma – duty of a kṣatriya, warrior's code, inherent nature (dharma) of a warrior
  noun (masculine)
• rata – devoted, attached, engaged in
  adjective (masculine)
  Past Passive Participle
  root ram + kta
  Root: ram (class 1)

Note: Adjective qualifying 'nṛpaḥ'.

नृपः (nṛpaḥ) - the ruler (king, monarch)

(noun)

Nominative, masculine, singular of nṛpa

nṛpa - king, monarch

from nṛ + pā (one who protects men)

Root: pā (class 2)

यः (yaḥ) - refers to 'nṛpaḥ' (who, which, that)

(pronoun)

Nominative, masculine, singular of yad

yad - who, which, what

हन्यात् (hanyāt) - should (hypothetically) kill (may kill, should kill, would kill)

(verb)

3rd person , singular, active, optative (vidhi-liṅ) of han

Optative Mood

Present Tense, Parasmaipada, 3rd Person, Singular

Root: han (class 2)

पितरस् (pitaras) - the paternal ancestors of the king (fathers, ancestors)

(noun)

Nominative, masculine, plural of pitṛ

pitṛ - father, ancestor

Note: Visarga sandhi changed to 's' before 'tasya'.

तस्य (tasya) - of that (king) (his, of him, its)

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

भ्रूणहत्याम् (bhrūṇahatyām) - the grave sin of feticide (the killing of an embryo, feticide, abortion (as a sin))

(noun)

Accusative, feminine, singular of bhrūṇahatyā

bhrūṇahatyā - feticide, embryo killing, abortion (as a sin)

Compound type : ṣaṣṭhī-tatpuruṣa (bhrūṇa+hatyā)

• bhrūṇa – embryo, fetus
  noun (neuter)
• hatyā – killing, murder, slaughter
  noun (feminine)
  root han + kyap
  Root: han (class 2)

अवाप्नुयुः (avāpnuyuḥ) - would incur (the sin) (may obtain, would incur, would reach)

(verb)

3rd person , plural, active, optative (vidhi-liṅ) of avāp

Optative Mood

Present Tense, Parasmaipada, 3rd Person, Plural

Prefix: ava

Root: āp (class 5)