महाभारतः mahābhārataḥ - book-7, chapter-67, verse-11

क्षरन्निव महामेघो वारिधाराः सहस्रशः ।
द्रोणमेघः पार्थशैलं ववर्ष शरवृष्टिभिः ॥११॥

11. kṣaranniva mahāmegho vāridhārāḥ sahasraśaḥ ,
droṇameghaḥ pārthaśailaṁ vavarṣa śaravṛṣṭibhiḥ.

11. kṣaran iva mahāmeghaḥ vāridhārāḥ sahasraśaḥ
droṇameghaḥ pārthaśailam vavarṣa śaravṛṣṭibhiḥ

11. droṇameghaḥ mahāmeghaḥ vāridhārāḥ sahasraśaḥ
kṣaran iva pārthaśailam śaravṛṣṭibhiḥ vavarṣa

11. Just as a great cloud showers thousands of streams of water, the cloud Drona rained torrents of arrows upon Arjuna, who stood like a mountain.

Words meanings summery:

• क्षरन् (kṣaran) - showering (water) (showering, flowing, dripping, oozing)

• इव (iva) - like, as if (like, as if, as)

• महामेघः (mahāmeghaḥ) - mighty cloud (great cloud, mighty cloud)

• वारिधाराः (vāridhārāḥ) - streams of water (streams of water, showers of water)

• सहस्रशः (sahasraśaḥ) - thousands of (by thousands, in thousands, thousands of)

• द्रोणमेघः (droṇameghaḥ) - Drona, who is like a cloud (Drona, the cloud)

• पार्थशैलम् (pārthaśailam) - Arjuna, who stood like a mountain (Arjuna-mountain, mountain-like Arjuna)

• ववर्ष (vavarṣa) - rained, showered

• शरवृष्टिभिः (śaravṛṣṭibhiḥ) - with torrents of arrows (with showers of arrows, by torrents of arrows)

Words meanings and morphology

क्षरन् (kṣaran) - showering (water) (showering, flowing, dripping, oozing)

(adjective)

Nominative, masculine, singular of kṣarat

kṣarat - showering, flowing, dripping, oozing (present participle active)

Present Active Participle

Derived from root kṣar (1st conjugation, Parasmaipada)

Root: kṣar (class 1)

इव (iva) - like, as if (like, as if, as)

(indeclinable)

महामेघः (mahāmeghaḥ) - mighty cloud (great cloud, mighty cloud)

(noun)

Nominative, masculine, singular of mahāmegha

mahāmegha - great cloud, mighty cloud

Compound type : karmadhāraya (mahat+megha)

• mahat – great, mighty, large
  adjective (neuter)
• megha – cloud
  noun (masculine)
  Root: megh

वारिधाराः (vāridhārāḥ) - streams of water (streams of water, showers of water)

(noun)

Accusative, feminine, plural of vāridhārā

vāridhārā - stream of water, current of water

Compound type : tatpurusha (vāri+dhārā)

• vāri – water
  noun (neuter)
• dhārā – stream, current, torrent, shower
  noun (feminine)
  From root dhṛ
  Root: dhṛ

Note: object of "showering" implicit in kṣaran

सहस्रशः (sahasraśaḥ) - thousands of (by thousands, in thousands, thousands of)

(indeclinable)

Suffix -śas

Note: Adverbial use

द्रोणमेघः (droṇameghaḥ) - Drona, who is like a cloud (Drona, the cloud)

(proper noun)

Nominative, masculine, singular of droṇamegha

droṇamegha - Drona, the cloud (as a metaphor for Drona)

Compound type : karmadhāraya (Droṇa+megha)

• Droṇa – Drona (name of the teacher)
  proper noun (masculine)
• megha – cloud
  noun (masculine)
  Root: megh

Note: Subject of the sentence

पार्थशैलम् (pārthaśailam) - Arjuna, who stood like a mountain (Arjuna-mountain, mountain-like Arjuna)

(noun)

Accusative, masculine, singular of pārthaśaila

pārthaśaila - Arjuna-mountain, mountain-like Arjuna

Compound type : karmadhāraya (Pārtha+śaila)

• Pārtha – son of Pṛthā (Kunti), Arjuna
  proper noun (masculine)
  Derived from Pṛthā + aṇ
• śaila – mountain, rock
  noun (masculine)

Note: Object of the verb vavarṣa

ववर्ष (vavarṣa) - rained, showered

(verb)

3rd person , singular, active, perfect (liṭ) of vṛṣ

Perfect Active

Root vṛṣ, Perfect tense form

Root: vṛṣ (class 1)

शरवृष्टिभिः (śaravṛṣṭibhiḥ) - with torrents of arrows (with showers of arrows, by torrents of arrows)

(noun)

Instrumental, feminine, plural of śaravṛṣṭi

śaravṛṣṭi - shower of arrows, torrent of arrows

Compound type : tatpurusha (śara+vṛṣṭi)

• śara – arrow
  noun (masculine)
• vṛṣṭi – rain, shower, torrent
  noun (feminine)
  From root vṛṣ + ktin
  Root: vṛṣ

Note: Means by which Drona rained