महाभारतः mahābhārataḥ - book-6, chapter-68, verse-30

एतस्मिन्नेव काले तु भीष्मः शांतनवः पुनः ।
व्यहनत्पाण्डवीं सेनामासुरीमिव वृत्रहा ॥३०॥

30. etasminneva kāle tu bhīṣmaḥ śāṁtanavaḥ punaḥ ,
vyahanatpāṇḍavīṁ senāmāsurīmiva vṛtrahā.

30. etasmin eva kāle tu bhīṣmaḥ śāṃtanavaḥ punaḥ
vyahanat pāṇḍavīm senām āsurīm iva vṛtrahā

30. etasmin eva kāle tu bhīṣmaḥ śāṃtanavaḥ punaḥ
vṛtrahā āsurīm iva pāṇḍavīm senām vyahanat

30. But at this very time, Bhishma, the son of Shantanu, again struck down the Pandava army, just as the slayer of Vritra (Indra) strikes down a demonic host.

Words meanings summery:

• एतस्मिन् (etasmin) - in this, at this

• एव (eva) - indeed, very, only

• काले (kāle) - at this time (at time, in time)

• तु (tu) - but, indeed, however

• भीष्मः (bhīṣmaḥ) - Bhishma (proper name)

• शांतनवः (śāṁtanavaḥ) - son of Shantanu

• पुनः (punaḥ) - again, further, moreover

• व्यहनत् (vyahanat) - he struck down, slew, killed

• पाण्डवीम् (pāṇḍavīm) - Pandava's, belonging to the Pandavas

• सेनाम् (senām) - army, host

• आसुरीम् (āsurīm) - demonic, belonging to Asuras

• इव (iva) - like, as, as if

• वृत्रहा (vṛtrahā) - slayer of Vritra (Indra)

Words meanings and morphology

एतस्मिन् (etasmin) - in this, at this

(pronoun)

Locative, masculine, singular of etad

etad - this, here

Note: Modifies 'kāle'.

एव (eva) - indeed, very, only

(indeclinable)

Note: Emphasizes 'kāle'.

काले (kāle) - at this time (at time, in time)

(noun)

Locative, masculine, singular of kāla

kāla - time, period, proper moment

तु (tu) - but, indeed, however

(indeclinable)

Note: Introduces a slight contrast or continuation.

भीष्मः (bhīṣmaḥ) - Bhishma (proper name)

(proper noun)

Nominative, masculine, singular of bhīṣma

bhīṣma - Bhishma (a prominent character in the Mahabharata, son of Shantanu)

Note: Subject of 'vyahanat'.

शांतनवः (śāṁtanavaḥ) - son of Shantanu

(proper noun)

Nominative, masculine, singular of śāṃtanava

śāṁtanava - son of Shantanu

Patronymic from Shantanu

Note: Apposition to 'bhīṣmaḥ'.

पुनः (punaḥ) - again, further, moreover

(indeclinable)

व्यहनत् (vyahanat) - he struck down, slew, killed

(verb)

3rd person , singular, active, past imperfect (laṅ) of vyahan

Imperfect Active

Derived from root han (to strike/kill) with upasarga vi-

Prefix: vi

Root: han (class 2)

पाण्डवीम् (pāṇḍavīm) - Pandava's, belonging to the Pandavas

(adjective)

Accusative, feminine, singular of pāṇḍavī

pāṇḍavī - related to the Pandavas, Pandava's

Feminine adjective derived from Pāṇḍava

सेनाम् (senām) - army, host

(noun)

Accusative, feminine, singular of senā

senā - army, host, force

Note: Object of 'vyahanat'.

आसुरीम् (āsurīm) - demonic, belonging to Asuras

(adjective)

Accusative, feminine, singular of āsurī

āsurī - demonic, belonging to Asuras, devilish

Feminine adjective derived from Asura

इव (iva) - like, as, as if

(indeclinable)

वृत्रहा (vṛtrahā) - slayer of Vritra (Indra)

(proper noun)

Nominative, masculine, singular of vṛtrahan

vṛtrahan - slayer of Vritra, an epithet of Indra

Compound type : tatpurusha (vṛtra+han)

• vṛtra – Vritra (name of an Asura), cover, obstacle
  proper noun (masculine)
• han – slayer, killer, striking
  noun (masculine)
  Agent Noun
  Derived from root han (to strike/kill)
  Root: han (class 2)

Note: Subject of the implied verb in the simile 'as Vṛtrahā strikes'.