महाभारतः mahābhārataḥ - book-6, chapter-49, verse-25

अथैनं छिन्नधन्वानं शरैः संनतपर्वभिः ।
अवाकिरदमेयात्मा वृष्ट्या मेघ इवाचलम् ॥२५॥

25. athainaṁ chinnadhanvānaṁ śaraiḥ saṁnataparvabhiḥ ,
avākiradameyātmā vṛṣṭyā megha ivācalam.

25. atha enam chinnadhanvānam śaraiḥ saṃnataparvabhiḥ
avākirat ameyātmā vṛṣṭyā meghaḥ iva acalam

25. atha ameyātmā meghaḥ vṛṣṭyā acalam iva
chinnadhanvānam enam saṃnataparvabhiḥ śaraiḥ avākirat

25. Then Drona, he of immeasurable spirit (ātman), showered him (Dhṛṣṭadyumna), whose bow was severed, with well-jointed arrows, just as a cloud showers rain upon a mountain.

Words meanings summery:

• अथ (atha) - then, thereupon, now

• एनम् (enam) - referring to Dhṛṣṭadyumna (him, this one)

• छिन्नधन्वानम् (chinnadhanvānam) - referring to Dhṛṣṭadyumna, whose bow Drona had just cut. (one whose bow was cut, bow-less)

• शरैः (śaraiḥ) - with arrows

• संनतपर्वभिः (saṁnataparvabhiḥ) - with well-jointed (or well-feathered) arrows

• अवाकिरत् (avākirat) - he showered, he scattered, he covered

• अमेयात्मा (ameyātmā) - referring to Drona, highlighting his vast spiritual and martial prowess. (he of immeasurable spirit (ātman))

• वृष्ट्या (vṛṣṭyā) - with rain

• मेघः (meghaḥ) - cloud

• इव (iva) - like, as, as if

• अचलम् (acalam) - mountain

Words meanings and morphology

अथ (atha) - then, thereupon, now

(indeclinable)

एनम् (enam) - referring to Dhṛṣṭadyumna (him, this one)

(pronoun)

Accusative, masculine, singular of ena

ena - this, that, he, she, it

छिन्नधन्वानम् (chinnadhanvānam) - referring to Dhṛṣṭadyumna, whose bow Drona had just cut. (one whose bow was cut, bow-less)

(adjective)

Accusative, masculine, singular of chinnadhanvan

chinnadhanvan - one whose bow is cut, having a broken bow

Bahuvrihi compound: chinna (cut) + dhanvan (bow).

Compound type : bahuvrīhi (chinna+dhanvan)

• chinna – cut, broken, severed
  adjective (masculine)
  Past Passive Participle
  Past Passive Participle of √chid (to cut).
  Root: chid (class 7)
• dhanvan – bow, arc
  noun (neuter)

शरैः (śaraiḥ) - with arrows

(noun)

Instrumental, masculine, plural of śara

śara - arrow; reed, dart

संनतपर्वभिः (saṁnataparvabhiḥ) - with well-jointed (or well-feathered) arrows

(adjective)

Instrumental, masculine, plural of saṃnataparvan

saṁnataparvan - having bent joints/knots; well-jointed (referring to arrows, implies well-crafted or well-feathered)

Bahuvrihi compound: saṃnata (bent, bowed) + parvan (joint, knot, segment).

Compound type : bahuvrīhi (saṃnata+parvan)

• saṃnata – bent, bowed, humbled
  adjective (masculine)
  Past Passive Participle
  Past Passive Participle of √nam (to bow, bend) with prefix sam-.
  Prefix: sam
  Root: nam (class 1)
• parvan – knot, joint, segment, limb; festive day
  noun (neuter)

अवाकिरत् (avākirat) - he showered, he scattered, he covered

(verb)

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

Verb √kṛ (to scatter) with prefix ava-.

Prefix: ava

Root: kṛ (class 6)

अमेयात्मा (ameyātmā) - referring to Drona, highlighting his vast spiritual and martial prowess. (he of immeasurable spirit (ātman))

(noun)

Nominative, masculine, singular of ameyātman

ameyātman - one of immeasurable soul/spirit/nature

Bahuvrihi compound: ameya (immeasurable) + ātman (self, spirit).

Compound type : bahuvrīhi (ameya+ātman)

• ameya – immeasurable, incomprehensible, infinite
  adjective (masculine)
  Gerundive/Future Passive Participle (negative)
  Negation of meya (measurable), which is derived from √mā (to measure).
  Prefix: a
  Root: mā (class 2)
• ātman – self, soul, spirit, essence
  noun (masculine)

वृष्ट्या (vṛṣṭyā) - with rain

(noun)

Instrumental, feminine, singular of vṛṣṭi

vṛṣṭi - rain, shower

Derived from √vṛṣ (to rain).

Root: vṛṣ (class 1)

मेघः (meghaḥ) - cloud

(noun)

Nominative, masculine, singular of megha

megha - cloud

इव (iva) - like, as, as if

(indeclinable)

अचलम् (acalam) - mountain

(noun)

Accusative, masculine, singular of acala

acala - immovable, steady; mountain (as a noun)

From 'a' (not) and 'cala' (moving).

Compound type : nañ-tatpuruṣa (a+cala)

• a – not, un-
  indeclinable
• cala – moving, shaking, unsteady
  adjective (masculine)
  Derived from √cal (to move).
  Root: cal (class 1)