महाभारतः mahābhārataḥ - book-7, chapter-1, verse-40

भीष्मः समरविक्रान्तः पाण्डवेयस्य पार्थिव ।
जघान समरे योधानसंख्येयपराक्रमः ॥४०॥

40. bhīṣmaḥ samaravikrāntaḥ pāṇḍaveyasya pārthiva ,
jaghāna samare yodhānasaṁkhyeyaparākramaḥ.

40. bhīṣmaḥ samara-vikrāntaḥ pāṇḍaveyasya pārthiva
jaghāna samare yodhān asaṅkhyeya-parākramaḥ

40. pārthiva bhīṣmaḥ samara-vikrāntaḥ asaṅkhyeya-parākramaḥ
pāṇḍaveyasya samare yodhān jaghāna

40. O King, Bhishma, mighty in battle and of immeasurable valor, slew the warriors of the Pandavas in combat.

Words meanings summery:

• भीष्मः (bhīṣmaḥ) - Bhishma

• समर-विक्रान्तः (samara-vikrāntaḥ) - mighty in battle, valorous in combat

• पाण्डवेयस्य (pāṇḍaveyasya) - of the Pandavas, related to the Pandavas

• पार्थिव (pārthiva) - O Dhritarashtra (O king, ruler)

• जघान (jaghāna) - slew, killed

• समरे (samare) - in battle, on the battlefield

• योधान् (yodhān) - warriors, fighters

• असङ्ख्येय-पराक्रमः (asaṅkhyeya-parākramaḥ) - of immeasurable valor, of countless might

Words meanings and morphology

भीष्मः (bhīṣmaḥ) - Bhishma

(proper noun)

Nominative, masculine, singular of bhīṣma

bhīṣma - Bhishma (name of a Kuru elder)

समर-विक्रान्तः (samara-vikrāntaḥ) - mighty in battle, valorous in combat

(adjective)

Nominative, masculine, singular of samara-vikrānta

samara-vikrānta - victorious/mighty in battle

Compound type : tatpurusha (samara+vikrānta)

• samara – battle, war, combat
  noun (masculine)
• vikrānta – valiant, brave, mighty, victorious
  adjective (masculine)
  Past Passive Participle
  Derived from root kram- (to step, stride) with prefix vi-
  Prefix: vi
  Root: kram (class 1)

Note: Qualifies Bhishma

पाण्डवेयस्य (pāṇḍaveyasya) - of the Pandavas, related to the Pandavas

(noun)

Genitive, masculine, singular of pāṇḍaveya

pāṇḍaveya - descendant of Pandu, son of Pandu

Derived from Pāṇḍu

Note: Refers to the lineage/side of the Pandavas

पार्थिव (pārthiva) - O Dhritarashtra (O king, ruler)

(noun)

Vocative, masculine, singular of pārthiva

pārthiva - earthly, king, ruler

Derived from pṛthivī (earth)

Note: Addressed to Dhritarashtra by Sanjaya

जघान (jaghāna) - slew, killed

(verb)

3rd person , singular, active, past perfect (lit) of han

Perfect Active

3rd person singular, perfect active, parasmaipada

Root: han (class 2)

समरे (samare) - in battle, on the battlefield

(noun)

Locative, masculine, singular of samara

samara - battle, war, combat

योधान् (yodhān) - warriors, fighters

(noun)

Accusative, masculine, plural of yodha

yodha - warrior, fighter

असङ्ख्येय-पराक्रमः (asaṅkhyeya-parākramaḥ) - of immeasurable valor, of countless might

(adjective)

Nominative, masculine, singular of asaṅkhyeya-parākrama

asaṅkhyeya-parākrama - of immeasurable valor/might

Compound type : bahuvrihi (a+saṅkhyeya+parākrama)

• a – not, un-, without
  indeclinable
  Negative prefix
• saṅkhyeya – countable, calculable
  adjective (masculine)
  Gerundive/Future Passive Participle
  Derived from root khyā- (to enumerate) with prefix sam- and suffix -eya
  Prefix: sam
  Root: khyā (class 2)
• parākrama – valor, might, prowess, strength
  noun (masculine)
  Prefix: parā
  Root: kram (class 1)

Note: Qualifies Bhishma