महाभारतः mahābhārataḥ - book-7, chapter-149, verse-17

ततः कर्णं शरव्रातैः कुरूनन्यान्सहस्रशः ।
अलंबलं चाभ्यवर्षन्मेघो मेरुमिवाचलम् ॥१७॥

17. tataḥ karṇaṁ śaravrātaiḥ kurūnanyānsahasraśaḥ ,
alaṁbalaṁ cābhyavarṣanmegho merumivācalam.

17. tataḥ karṇam śaravrātaiḥ kurūn anyān sahasraśaḥ
alambalam ca abhyavarṣat meghaḥ merum iva acalam

17. tataḥ (saḥ) meghaḥ merum acalam iva karṇam kurūn
anyān sahasraśaḥ alambalam ca śaravrātaiḥ abhyavarṣat

17. Then, he showered Karna, thousands of other Kurus, and Alambala with volleys of arrows, just as a cloud showers an immovable mountain like Meru.

Words meanings summery:

• ततः (tataḥ) - then, thereupon, from that

• कर्णम् (karṇam) - Karna

• शरव्रातैः (śaravrātaiḥ) - with volleys of arrows, with masses of arrows

• कुरून् (kurūn) - the Kuru warriors (the Kurus (plural))

• अन्यान् (anyān) - other warriors in the Kuru army (others)

• सहस्रशः (sahasraśaḥ) - by thousands, thousands of

• अलम्बलम् (alambalam) - Alambala (a rakshasa)

• च (ca) - and, also

• अभ्यवर्षत् (abhyavarṣat) - showered upon, rained upon

• मेघः (meghaḥ) - cloud

• मेरुम् (merum) - Meru (a mythical mountain)

• इव (iva) - like, as, as if

• अचलम् (acalam) - an immovable mountain (modifying Meru) (immovable, mountain)

Words meanings and morphology

ततः (tataḥ) - then, thereupon, from that

(indeclinable)

Ablative suffix -tas added to 'tat'

कर्णम् (karṇam) - Karna

(proper noun)

Accusative, masculine, singular of karṇa

karṇa - Karna (a prominent warrior in the Mahabharata), ear

शरव्रातैः (śaravrātaiḥ) - with volleys of arrows, with masses of arrows

(noun)

Instrumental, masculine, plural of śaravrāta

śaravrāta - mass/multitude of arrows

Compound type : tatpuruṣa (śara+vrāta)

• śara – arrow, reed
  noun (masculine)
• vrāta – multitude, host, collection
  noun (masculine)

कुरून् (kurūn) - the Kuru warriors (the Kurus (plural))

(proper noun)

Accusative, masculine, plural of kuru

kuru - Kuru (an ancient king, his descendants, or his territory)

अन्यान् (anyān) - other warriors in the Kuru army (others)

(pronoun)

Accusative, masculine, plural of anya

anya - other, another, different

सहस्रशः (sahasraśaḥ) - by thousands, thousands of

(indeclinable)

Suffix -śas indicating distribution or number

अलम्बलम् (alambalam) - Alambala (a rakshasa)

(proper noun)

Accusative, masculine, singular of alambala

alambala - Alambala (name of a Rākṣasa warrior in the Mahābhārata)

च (ca) - and, also

(indeclinable)

अभ्यवर्षत् (abhyavarṣat) - showered upon, rained upon

(verb)

3rd person , singular, active, imperfect (laṅ) of √vṛṣ

Imperfect Active

From √vṛṣ with prefixes abhi and a (augment for imperfect tense).

Prefix: abhi

Root: √vṛṣ (class 1)

मेघः (meghaḥ) - cloud

(noun)

Nominative, masculine, singular of megha

megha - cloud

From √mih (to sprinkle, to urinate)

Root: √mih (class 1)

मेरुम् (merum) - Meru (a mythical mountain)

(proper noun)

Accusative, masculine, singular of meru

meru - Meru (the mythical sacred mountain, center of the world)

इव (iva) - like, as, as if

(indeclinable)

अचलम् (acalam) - an immovable mountain (modifying Meru) (immovable, mountain)

(adjective)

Accusative, masculine, singular of acala

acala - immovable, firm, a mountain

Negative particle 'a' + 'cala' (movable).

Compound type : nañ-tatpuruṣa (a+cala)

• a – not, non-, un-
  indeclinable
  Negative particle.
• cala – moving, trembling, wavering
  adjective
  From √cal (to move).
  Root: √cal (class 1)

Note: Adjective modifying 'merum'.