महाभारतः mahābhārataḥ - book-5, chapter-63, verse-2

पञ्चानां पाण्डुपुत्राणां यत्तेजः प्रमिमीषसि ।
पञ्चानामिव भूतानां महतां सुमहात्मनाम् ॥२॥

2. pañcānāṁ pāṇḍuputrāṇāṁ yattejaḥ pramimīṣasi ,
pañcānāmiva bhūtānāṁ mahatāṁ sumahātmanām.

2. pañcānām pāṇḍuputrāṇām yat tejaḥ pramimīṣasi
| pañcānām iva bhūtānām mahatām sumahātmanām

2. You underestimate the prowess of the five sons of Pāṇḍu, just as one would underestimate the immense power of the five great elements, which possess a magnificent nature (ātman).

Words meanings summery:

• पञ्चानाम् (pañcānām) - of the five

• पाण्डुपुत्राणाम् (pāṇḍuputrāṇām) - of the Pāṇḍu sons (of the sons of Pandu)

• यत् (yat) - which (refers to 'tejaḥ') (which (accusative neuter), that)

• तेजः (tejaḥ) - prowess, power (brilliance, splendor, energy, prowess, power)

• प्रमिमीषसि (pramimīṣasi) - you underestimate (you underestimate, you measure down, you minimize)

• पञ्चानाम् (pañcānām) - of the five

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

• भूतानाम् (bhūtānām) - of the elements (of beings, of elements, of what has come into existence)

• महताम् (mahatām) - of the great (of the great, of the mighty)

• सुमहात्मनाम् (sumahātmanām) - of those possessing a magnificent nature (ātman) (of those with great souls/magnificent nature)

Words meanings and morphology

पञ्चानाम् (pañcānām) - of the five

(numeral)

पाण्डुपुत्राणाम् (pāṇḍuputrāṇām) - of the Pāṇḍu sons (of the sons of Pandu)

(noun)

Genitive, masculine, plural of pāṇḍuputra

pāṇḍuputra - son of Pandu

Compound type : tatpuruṣa (pāṇḍu+putra)

• pāṇḍu – Pandu (proper name, father of the Pandavas); pale, yellowish white
  proper noun (masculine)
• putra – son, child
  noun (masculine)

यत् (yat) - which (refers to 'tejaḥ') (which (accusative neuter), that)

(pronoun)

Accusative, neuter, singular of yat

yat - that, which, what

तेजः (tejaḥ) - prowess, power (brilliance, splendor, energy, prowess, power)

(noun)

Accusative, neuter, singular of tejas

tejas - brilliance, splendor, energy, power, valor, fiery spirit

प्रमिमीषसि (pramimīṣasi) - you underestimate (you underestimate, you measure down, you minimize)

(verb)

2nd person , singular, active, present (laṭ) of pramā

Desiderative form of 'mā' with prefix 'pra'

Prefix: pra

Root: mā (class 3)

पञ्चानाम् (pañcānām) - of the five

(numeral)

इव (iva) - just as (like, as, as if)

(indeclinable)

भूतानाम् (bhūtānām) - of the elements (of beings, of elements, of what has come into existence)

(noun)

Genitive, neuter, plural of bhūta

bhūta - being, creature, element (especially the five great elements), past, formed

Past Passive Participle

Derived from root bhū- 'to be, to become'

Root: bhū (class 1)

महताम् (mahatām) - of the great (of the great, of the mighty)

(adjective)

Genitive, neuter, plural of mahat

mahat - great, large, mighty, important

Note: Agrees with bhūtānām

सुमहात्मनाम् (sumahātmanām) - of those possessing a magnificent nature (ātman) (of those with great souls/magnificent nature)

(adjective)

Genitive, masculine, plural of sumahātman

sumahātman - great-souled, high-minded, magnificent-natured

Compound type : bahuvrīhi (su+mahātman)

• su – good, well, easily, very, excellent
  indeclinable
• mahātman – great-souled, high-minded, noble; great self (ātman)
  adjective (masculine)

Note: Agrees with bhūtānām