महाभारतः mahābhārataḥ - book-2, chapter-59, verse-3

आशीविषाः शिरसि ते पूर्णकोशा महाविषाः ।
मा कोपिष्ठाः सुमन्दात्मन्मा गमस्त्वं यमक्षयम् ॥३॥

3. āśīviṣāḥ śirasi te pūrṇakośā mahāviṣāḥ ,
mā kopiṣṭhāḥ sumandātmanmā gamastvaṁ yamakṣayam.

3. āśīviṣāḥ śirasi te pūrṇakośāḥ mahāviṣāḥ | mā
kopiṣṭhāḥ su-manda-ātman mā gamaḥ tvam yama-kṣayam

3. Highly venomous snakes, with full venom sacs, are upon your head. O utterly foolish soul, do not provoke them, and do not go to the abode of Yama (death).

Words meanings summery:

• आशीविषाः (āśīviṣāḥ) - Metaphorically, these are the Pāṇḍavas, who are dangerous. (venomous snakes, serpents (lit. 'those whose poison is in their fangs'))

• शिरसि (śirasi) - The danger (Pāṇḍavas as snakes) is directly threatening Duryodhana, or upon him. (on the head)

• ते (te) - Your head or 'for you' (implying danger to him). (of you, to you, your)

• पूर्णकोशाः (pūrṇakośāḥ) - Referring to the venom sacs of the snakes being full, implying their readiness to strike. (with full sacs/sheaths/stores)

• महाविषाः (mahāviṣāḥ) - Emphasizes the deadly nature of the 'snakes' (Pāṇḍavas). (highly venomous, having great poison)

• मा (mā) - Negates the imperative/injunctive action. (not, do not)

• कोपिष्ठाः (kopiṣṭhāḥ) - Direct command to Duryodhana not to anger the Pāṇḍavas. (do not become angry, do not provoke)

• सु-मन्द-आत्मन् (su-manda-ātman) - Vocative address to Duryodhana, emphasizing his deep foolishness (of soul/mind). (O very foolish soul, O very dull-witted one)

• मा (mā) - Negates the imperative action of going. (not, do not)

• गमः (gamaḥ) - Do not bring yourself to destruction. (do not go)

• त्वम् (tvam) - Refers to Duryodhana. (you)

• यम-क्षयम् (yama-kṣayam) - To death, the realm of the god of death. (to the abode of Yama, to the destruction of Yama)

Words meanings and morphology

आशीविषाः (āśīviṣāḥ) - Metaphorically, these are the Pāṇḍavas, who are dangerous. (venomous snakes, serpents (lit. 'those whose poison is in their fangs'))

(noun)

Nominative, masculine, plural of āśīviṣa

āśīviṣa - venomous snake (whose poison is in its fangs)

Compound type : bahuvrīhi (āśī+viṣa)

• āśī – fang, tooth
  noun (feminine)
• viṣa – poison, venom
  noun (neuter)

शिरसि (śirasi) - The danger (Pāṇḍavas as snakes) is directly threatening Duryodhana, or upon him. (on the head)

(noun)

Locative, neuter, singular of śiras

śiras - head

ते (te) - Your head or 'for you' (implying danger to him). (of you, to you, your)

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

Note: Enclitic form.

पूर्णकोशाः (pūrṇakośāḥ) - Referring to the venom sacs of the snakes being full, implying their readiness to strike. (with full sacs/sheaths/stores)

(adjective)

Nominative, masculine, plural of pūrṇakośa

pūrṇakośa - having full sacs, filled with treasure

Compound type : bahuvrīhi (pūrṇa+kośa)

• pūrṇa – full, complete
  adjective (masculine)
  Past Passive Participle
  from root pṛ 'to fill'
  Root: pṛ (class 9)
• kośa – sheath, treasury, venom sac (of a snake)
  noun (masculine)

Note: Agrees with āśīviṣāḥ.

महाविषाः (mahāviṣāḥ) - Emphasizes the deadly nature of the 'snakes' (Pāṇḍavas). (highly venomous, having great poison)

(adjective)

Nominative, masculine, plural of mahāviṣa

mahāviṣa - having great poison, highly venomous

Compound type : bahuvrīhi (mahā+viṣa)

• mahā – great, large, mighty
  adjective
• viṣa – poison, venom
  noun (neuter)

Note: Agrees with āśīviṣāḥ.

मा (mā) - Negates the imperative/injunctive action. (not, do not)

(indeclinable)

कोपिष्ठाः (kopiṣṭhāḥ) - Direct command to Duryodhana not to anger the Pāṇḍavas. (do not become angry, do not provoke)

(verb)

2nd person , singular, middle, aorist (luṅ) of kup

Injunctive Aorist

root kup, 2nd person singular Aorist (with mā for prohibition)

Root: kup (class 4)

Note: Used with mā for prohibition.

सु-मन्द-आत्मन् (su-manda-ātman) - Vocative address to Duryodhana, emphasizing his deep foolishness (of soul/mind). (O very foolish soul, O very dull-witted one)

(adjective)

Vocative, masculine, singular of su-manda-ātman

su-manda-ātman - very foolish-minded, extremely dull-witted

Compound type : bahuvrīhi (su+manda+ātman)

• su – good, well, very, excellent
  indeclinable
• manda – slow, dull, foolish
  adjective (masculine)
• ātman – self, soul, spirit, essence
  noun (masculine)

Note: Refers to Duryodhana.

मा (mā) - Negates the imperative action of going. (not, do not)

(indeclinable)

गमः (gamaḥ) - Do not bring yourself to destruction. (do not go)

(verb)

2nd person , singular, active, aorist (luṅ) of gam

Injunctive Aorist

root gam, 2nd person singular Aorist (with mā for prohibition)

Root: gam (class 1)

Note: Used with mā for prohibition.

त्वम् (tvam) - Refers to Duryodhana. (you)

(pronoun)

Nominative, singular of yuṣmad

yuṣmad - you (singular)

यम-क्षयम् (yama-kṣayam) - To death, the realm of the god of death. (to the abode of Yama, to the destruction of Yama)

(noun)

Accusative, masculine, singular of yama-kṣaya

yama-kṣaya - abode of Yama, destruction by Yama

Compound type : genitive tatpurusha (yama+kṣaya)

• yama – Yama (god of death)
  proper noun (masculine)
• kṣaya – abode, dwelling, destruction, end
  noun (masculine)
  from root kṣi 'to dwell' or 'to destroy'
  Root: kṣi (class 5)

Note: Object of 'gamaḥ'.