महाभारतः mahābhārataḥ - book-5, chapter-58, verse-17

वाचं तां वचनार्हस्य शिक्षाक्षरसमन्विताम् ।
अश्रौषमहमिष्टार्थां पश्चाद्धृदयशोषिणीम् ॥१७॥

17. vācaṁ tāṁ vacanārhasya śikṣākṣarasamanvitām ,
aśrauṣamahamiṣṭārthāṁ paścāddhṛdayaśoṣiṇīm.

17. vācam tām vacanārhasya śikṣākṣarasamanvitām
aśrauṣam aham iṣṭārthām paścāt hṛdayaśoṣiṇīm

17. I heard that speech, uttered by one worthy of speaking, which was complete with well-pronounced syllables and had a desirable purpose, but which later withered the heart.

Words meanings summery:

• वाचम् (vācam) - speech, word

• ताम् (tām) - that (feminine singular accusative)

• वचनार्हस्य (vacanārhasya) - of him who is worthy of speech, of the eloquent one

• शिक्षाक्षरसमन्विताम् (śikṣākṣarasamanvitām) - endowed with well-enunciated syllables/letters

• अश्रौषम् (aśrauṣam) - I heard

• अहम् (aham) - I

• इष्टार्थाम् (iṣṭārthām) - having a desired purpose/meaning

• पश्चात् (paścāt) - afterwards, later, behind

• हृदयशोषिणीम् (hṛdayaśoṣiṇīm) - heart-withering, drying up the heart

Words meanings and morphology

वाचम् (vācam) - speech, word

(noun)

Accusative, feminine, singular of vāc

vāc - speech, word, voice, language

ताम् (tām) - that (feminine singular accusative)

(pronoun)

Accusative, feminine, singular of tad

tad - that, she, it

वचनार्हस्य (vacanārhasya) - of him who is worthy of speech, of the eloquent one

(adjective)

Genitive, masculine, singular of vacanārha

vacanārha - worthy of speech, eloquent, fit to speak

Compound type : tatpurusha (vacana+arha)

• vacana – speech, word, saying
  noun (neuter)
  From root vac
  Root: vac (class 2)
• arha – worthy, deserving, suitable, fit
  adjective
  Root: arh (class 1)

शिक्षाक्षरसमन्विताम् (śikṣākṣarasamanvitām) - endowed with well-enunciated syllables/letters

(adjective)

Accusative, feminine, singular of śikṣākṣarasamanvitā

śikṣākṣarasamanvitā - endowed with well-articulated syllables; containing clearly pronounced letters

Compound ending in a past passive participle

Compound type : bahuvrihi (śikṣā+akṣara+samanvitā)

• śikṣā – instruction, learning; phonetics (one of the Vedangas); proper pronunciation
  noun (feminine)
  From root śikṣ
  Root: śikṣ (class 1)
• akṣara – syllable, letter; imperishable, indestructible
  noun (neuter)
  From root kṣar with negative prefix a-
  Prefix: a
  Root: kṣar (class 1)
• samanvitā – endowed with, accompanied by, possessed of, furnished with
  adjective (feminine)
  Past Passive Participle
  From root i with prefixes sam- and anu-
  Prefixes: sam+anu
  Root: i (class 2)

अश्रौषम् (aśrauṣam) - I heard

(verb)

1st person , singular, active, aorist (luṅ) of śru

Root: śru (class 5)

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, me, we, us

इष्टार्थाम् (iṣṭārthām) - having a desired purpose/meaning

(adjective)

Accusative, feminine, singular of iṣṭārthā

iṣṭārthā - having a desired object; having a desired purpose or meaning

Compound type : bahuvrihi (iṣṭa+arthā)

• iṣṭa – desired, wished, beloved; sacrificed
  adjective
  Past Passive Participle
  From root iṣ (to wish) or yaj (to sacrifice)
  Root: iṣ (class 4)
• arthā – purpose, meaning, object, wealth, affair
  noun (feminine)

पश्चात् (paścāt) - afterwards, later, behind

(indeclinable)

हृदयशोषिणीम् (hṛdayaśoṣiṇīm) - heart-withering, drying up the heart

(adjective)

Accusative, feminine, singular of hṛdayaśoṣiṇī

hṛdayaśoṣiṇī - causing the heart to dry up; heart-withering, sorrow-inducing

Agent noun from hṛdaya + root śuṣ

Compound type : tatpurusha (hṛdaya+śoṣiṇī)

• hṛdaya – heart, mind, soul
  noun (neuter)
• śoṣiṇī – drying, causing to wither, consuming
  adjective (feminine)
  Agent Noun
  From root śuṣ
  Root: śuṣ (class 4)