महाभारतः mahābhārataḥ - book-11, chapter-23, verse-26

अर्जुनस्य विनेतारमाचार्यं सात्यकेस्तथा ।
तं पश्य पतितं द्रोणं कुरूणां गुरुसत्तमम् ॥२६॥

26. arjunasya vinetāramācāryaṁ sātyakestathā ,
taṁ paśya patitaṁ droṇaṁ kurūṇāṁ gurusattamam.

26. arjunasya vinetāram ācāryam sātyakeḥ tathā
tam paśya patitam droṇam kurūṇām gurusattamam

26. paśya tam droṇam arjunasya vinetāram tathā
sātyakeḥ ācāryam kurūṇām gurusattamam patitam

26. Behold Drona, the preceptor and instructor of Arjuna, and similarly of Satyaki, who has now fallen; he was the foremost among the teachers of the Kurus.

Words meanings summery:

• अर्जुनस्य (arjunasya) - of Arjuna

• विनेतारम् (vinetāram) - instructor, guide, trainer

• आचार्यम् (ācāryam) - preceptor, teacher, master

• सात्यकेः (sātyakeḥ) - of Satyaki

• तथा (tathā) - thus, so, and, also, similarly

• तम् (tam) - him, that

• पश्य (paśya) - behold, see, look

• पतितम् (patitam) - fallen, fallen down

• द्रोणम् (droṇam) - Drona

• कुरूणाम् (kurūṇām) - of the Kurus

• गुरुसत्तमम् (gurusattamam) - the best among teachers, foremost preceptor

Words meanings and morphology

अर्जुनस्य (arjunasya) - of Arjuna

(proper noun)

Genitive, masculine, singular of arjuna

arjuna - Arjuna (name of a Pandava prince)

विनेतारम् (vinetāram) - instructor, guide, trainer

(noun)

Accusative, masculine, singular of vinetṛ

vinetṛ - instructor, guide, discipliner

Agent noun

Derived from the root √nī with prefix vi-.

Prefix: vi

Root: nī (class 1)

आचार्यम् (ācāryam) - preceptor, teacher, master

(noun)

Accusative, masculine, singular of ācārya

ācārya - preceptor, teacher, master

सात्यकेः (sātyakeḥ) - of Satyaki

(proper noun)

Genitive, masculine, singular of sātyaki

sātyaki - Satyaki (a Yadava warrior)

तथा (tathā) - thus, so, and, also, similarly

(indeclinable)

तम् (tam) - him, that

(pronoun)

Accusative, masculine, singular of tad

tad - that, he, she, it

पश्य (paśya) - behold, see, look

(verb)

2nd person , singular, active, imperative (loṭ) of √dṛś

Imperative, 2nd singular

Root: dṛś (class 1)

पतितम् (patitam) - fallen, fallen down

(adjective)

Accusative, masculine, singular of patita

patita - fallen, descended

Past Passive Participle

From √pat (to fall)

Root: pat (class 1)

द्रोणम् (droṇam) - Drona

(proper noun)

Accusative, masculine, singular of droṇa

droṇa - Drona (preceptor of the Kauravas and Pandavas)

कुरूणाम् (kurūṇām) - of the Kurus

(proper noun)

Genitive, masculine, plural of kuru

kuru - a member of the Kuru dynasty

गुरुसत्तमम् (gurusattamam) - the best among teachers, foremost preceptor

(adjective)

Accusative, masculine, singular of gurusattama

gurusattama - best of gurus/teachers, foremost preceptor

Compound type : tatpuruṣa (guru+sattama)

• guru – teacher, preceptor, respected elder
  noun (masculine)
• sattama – best, excellent, most eminent (superlative suffix)
  adjective
  Superlative suffix -tama added to 'sat' (good/existent), here used with 'guru'.