महाभारतः mahābhārataḥ - book-5, chapter-144, verse-15

अयं हि कालः संप्राप्तो धार्तराष्ट्रोपजीविनाम् ।
निर्वेष्टव्यं मया तत्र प्राणानपरिरक्षता ॥१५॥

15. ayaṁ hi kālaḥ saṁprāpto dhārtarāṣṭropajīvinām ,
nirveṣṭavyaṁ mayā tatra prāṇānaparirakṣatā.

15. ayam hi kālaḥ saṃprāptaḥ dhārtarāṣṭropajīvinām
nirveṣṭavyam mayā tatra prāṇān aparirakṣatā

15. ayam hi kālaḥ dhārtarāṣṭropajīvinām saṃprāptaḥ
mayā tatra prāṇān aparirakṣatā nirveṣṭavyam

15. Indeed, this moment has arrived for those who subsist on the sons of Dhṛtarāṣṭra. I must act there, disregarding my own life.

Words meanings summery:

• अयम् (ayam) - this, this one

• हि (hi) - indeed, surely, for, because

• कालः (kālaḥ) - time, season, moment

• संप्राप्तः (saṁprāptaḥ) - arrived, obtained, reached

• धार्तराष्ट्रोपजीविनाम् (dhārtarāṣṭropajīvinām) - of those who subsist on the sons of Dhṛtarāṣṭra

• निर्वेष्टव्यम् (nirveṣṭavyam) - I must act (it must be done/performed, it should be exerted)

• मया (mayā) - by me

• तत्र (tatra) - there, in that place

• प्राणान् (prāṇān) - lives, breaths, vital airs

• अपरिरक्षता (aparirakṣatā) - disregarding my life (without protecting, not safeguarding)

Words meanings and morphology

अयम् (ayam) - this, this one

(pronoun)

Nominative, masculine, singular of idam

idam - this, this one, here

हि (hi) - indeed, surely, for, because

(indeclinable)

कालः (kālaḥ) - time, season, moment

(noun)

Nominative, masculine, singular of kāla

kāla - time, period, season, moment

संप्राप्तः (saṁprāptaḥ) - arrived, obtained, reached

(adjective)

Nominative, masculine, singular of saṃprāpta

saṁprāpta - arrived, attained, obtained

Past Passive Participle

Derived from root `āp` (to obtain, reach) with prefixes `sam` and `pra`.

Prefixes: sam+pra

Root: āp (class 5)

Note: Participle agreeing with `kālaḥ`.

धार्तराष्ट्रोपजीविनाम् (dhārtarāṣṭropajīvinām) - of those who subsist on the sons of Dhṛtarāṣṭra

(noun)

Genitive, masculine, plural of dhārtarāṣṭropajīvin

dhārtarāṣṭropajīvin - one who subsists on the Dhṛtarāṣṭras (sons of Dhṛtarāṣṭra)

Compound type : tatpuruṣa (dhārtarāṣṭra+upajīvin)

• dhārtarāṣṭra – son of Dhṛtarāṣṭra; related to Dhṛtarāṣṭra
  proper noun (masculine)
• upajīvin – one who lives upon, dependent, subsistent
  noun (masculine)
  n-agent noun
  Derived from root `jīv` (to live) with prefix `upa`.
  Prefix: upa
  Root: jīv (class 1)

निर्वेष्टव्यम् (nirveṣṭavyam) - I must act (it must be done/performed, it should be exerted)

(adjective)

Nominative, neuter, singular of nirveṣṭavya

nirveṣṭavya - to be done, to be performed, to be exerted

Gerundive

Derived from root `viś` (to enter, act) with prefix `nis`. The `ṭ` comes from the root `viś` (which has `ṣ` that turns to `ṭ` before `tavya`).

Prefix: nis

Root: viś (class 6)

Note: Acts as the predicate of an implied 'it' (the action).

मया (mayā) - by me

(pronoun)

Instrumental, singular of aham

aham - I

Note: Agent of the passive `nirveṣṭavyam`.

तत्र (tatra) - there, in that place

(indeclinable)

Derived from the demonstrative pronoun `tad`.

प्राणान् (prāṇān) - lives, breaths, vital airs

(noun)

Accusative, masculine, plural of prāṇa

prāṇa - breath, vital air, life, spirit

Derived from root `an` (to breathe) with prefix `pra`.

Prefix: pra

Root: an (class 2)

Note: Object of `aparirakṣatā`.

अपरिरक्षता (aparirakṣatā) - disregarding my life (without protecting, not safeguarding)

(adjective)

Instrumental, masculine, singular of aparirakṣat

aparirakṣat - not protecting, not guarding

Present Active Participle

From root `rakṣ` (to protect) with prefixes `pari` and `a` (negative). `a-pari-rakṣ-at`.

Compound type : nañ-tatpuruṣa (a+parirakṣat)

• a – not, un-
  indeclinable
  Negative particle.
• parirakṣat – protecting, guarding fully
  adjective (masculine)
  Present Active Participle
  From root `rakṣ` with prefix `pari`.
  Prefix: pari
  Root: rakṣ (class 1)

Note: Modifies the agent `mayā`.