महाभारतः mahābhārataḥ - book-5, chapter-29, verse-37

यो बीभत्सोर्हृदये प्रौढ आसीदस्थिप्रच्छिन्मर्मघाती सुघोरः ।
कर्णाच्छरो वाङ्मयस्तिग्मतेजाः प्रतिष्ठितो हृदये फल्गुनस्य ॥३७॥

37. yo bībhatsorhṛdaye prauḍha āsī;dasthipracchinmarmaghātī sughoraḥ ,
karṇāccharo vāṅmayastigmatejāḥ; pratiṣṭhito hṛdaye phalgunasya.

37. yaḥ bībhatsoḥ hṛdaye prauḍhaḥ āsīt
asthipracchinmarmaghātī sughoraḥ
karṇāt śaraḥ vāṅmayaḥ tigmatejāḥ
pratiṣṭhitaḥ hṛdaye phalgunasya

37. From Karna came a word-arrow (vāṅmayaḥ śaraḥ) that was mighty in the heart of Bibhatsu (Arjuna), one that cut bones, struck vital points, and was exceedingly terrible. This fiercely sharp (tigmatejāḥ) arrow of words lodged itself in Phalguna's (Arjuna's) heart.

Words meanings summery:

• यः (yaḥ) - who, which, that

• बीभत्सोः (bībhatsoḥ) - Of Arjuna (of Bibhatsu)

• हृदये (hṛdaye) - in the heart, in the mind

• प्रौढः (prauḍhaḥ) - mighty, intense, strong, mature

• आसीत् (āsīt) - was, existed

• अस्थिप्रच्छिन्मर्मघाती (asthipracchinmarmaghātī) - bone-cutting and vital-spot-striking, mortally wounding

• सुघोरः (sughoraḥ) - very dreadful, exceedingly terrible

• कर्णात् (karṇāt) - from Karna

• शरः (śaraḥ) - an arrow, a reed

• वाङ्मयः (vāṅmayaḥ) - consisting of words, verbal

• तिग्मतेजाः (tigmatejāḥ) - sharp-edged, fierce-shining, of sharp might

• प्रतिष्ठितः (pratiṣṭhitaḥ) - lodged, established, settled, fixed

• हृदये (hṛdaye) - in the heart, in the mind

• फल्गुनस्य (phalgunasya) - Of Arjuna (of Phalguna)

Words meanings and morphology

यः (yaḥ) - who, which, that

(pronoun)

Nominative, masculine, singular of yad

yad - which, who, what

बीभत्सोः (bībhatsoḥ) - Of Arjuna (of Bibhatsu)

(proper noun)

Genitive, masculine, singular of bībhatsu

bībhatsu - disgusted, abhorrent, an epithet of Arjuna (one who abhors foul deeds)

हृदये (hṛdaye) - in the heart, in the mind

(noun)

Locative, neuter, singular of hṛdaya

hṛdaya - heart, mind, core, essence

प्रौढः (prauḍhaḥ) - mighty, intense, strong, mature

(verbal derivative)

आसीत् (āsīt) - was, existed

(verb)

3rd person , singular, active, imperfect (laṅ) of as

Root: as (class 2)

अस्थिप्रच्छिन्मर्मघाती (asthipracchinmarmaghātī) - bone-cutting and vital-spot-striking, mortally wounding

(adjective)

Nominative, masculine, singular of asthipracchinmarmaghātin

asthipracchinmarmaghātin - bone-splitting and vital-spot-striking

Compound type : tatpuruṣa (asthipracchin+marmaghātin)

• asthipracchin – bone-splitting, bone-piercing
  adjective (masculine)
  Agent Noun
  From asthi (bone) and pra-√chid (to split), with suffix ṇvin (agent)
  Prefix: pra
  Root: chid (class 7)
• marmaghātin – striking vital spots, fatal
  adjective (masculine)
  Agent Noun
  From marman (vital spot) and √han (to strike), with suffix ṇini (agent)
  Root: han (class 2)

सुघोरः (sughoraḥ) - very dreadful, exceedingly terrible

(adjective)

Nominative, masculine, singular of sughora

sughora - very dreadful, exceedingly terrible, awful

Compound type : karmadhāraya (su+ghora)

• su – good, well, very, exceedingly
  indeclinable
• ghora – dreadful, terrible, fierce, awful
  adjective (masculine)

कर्णात् (karṇāt) - from Karna

(proper noun)

Ablative, masculine, singular of karṇa

karṇa - Karna (name of a warrior)

शरः (śaraḥ) - an arrow, a reed

(noun)

Nominative, masculine, singular of śara

śara - arrow, reed, water

वाङ्मयः (vāṅmayaḥ) - consisting of words, verbal

(adjective)

Nominative, masculine, singular of vāṅmaya

vāṅmaya - consisting of words, verbal, eloquent

Derived from vāc (speech) with suffix mayaṭ

Compound type : tatpuruṣa (vāc+maya)

• vāc – speech, word, voice
  noun (feminine)
• maya – consisting of, made of
  suffix (masculine)

तिग्मतेजाः (tigmatejāḥ) - sharp-edged, fierce-shining, of sharp might

(adjective)

Nominative, masculine, singular of tigmatejas

tigmatejas - sharp-edged, fierce-shining, of keen energy or brilliance

Compound type : karmadhāraya (tigma+tejas)

• tigma – sharp, keen, hot, fierce
  adjective (masculine)
• tejas – sharpness, brilliance, energy, power
  noun (neuter)

प्रतिष्ठितः (pratiṣṭhitaḥ) - lodged, established, settled, fixed

(verbal derivative)

हृदये (hṛdaye) - in the heart, in the mind

(noun)

Locative, neuter, singular of hṛdaya

hṛdaya - heart, mind, core, essence

फल्गुनस्य (phalgunasya) - Of Arjuna (of Phalguna)

(proper noun)

Genitive, masculine, singular of phalguna

phalguna - Phalguna (an epithet of Arjuna, born in Phalguna month)