महाभारतः mahābhārataḥ - book-3, chapter-245, verse-7

अवशिष्टमल्पकालं मन्वानाः पुरुषर्षभाः ।
वपुरन्यदिवाकार्षुरुत्साहामर्षचेष्टितैः ॥७॥

7. avaśiṣṭamalpakālaṁ manvānāḥ puruṣarṣabhāḥ ,
vapuranyadivākārṣurutsāhāmarṣaceṣṭitaiḥ.

7. avaśiṣṭam alpakālam manvānāḥ puruṣarṣabhāḥ
vapuḥ anyat iva akārṣuḥ utsāhāmaraṣaceṣṭitaiḥ

7. Considering the remaining time to be short, those best among men (puruṣarṣabhāḥ) acted as if they had transformed into different beings through their displays of zeal and indignation.

Words meanings summery:

• अवशिष्टम् (avaśiṣṭam) - remaining, left over

• अल्पकालम् (alpakālam) - a short time

• मन्वानाः (manvānāḥ) - considering, thinking

• पुरुषर्षभाः (puruṣarṣabhāḥ) - best of men, mighty men

• वपुः (vapuḥ) - body, form

• अन्यत् (anyat) - another, different

• इव (iva) - as if, like

• अकार्षुः (akārṣuḥ) - they made, performed, did

• उत्साहामरषचेष्टितैः (utsāhāmaraṣaceṣṭitaiḥ) - by acts of zeal and indignation

Words meanings and morphology

अवशिष्टम् (avaśiṣṭam) - remaining, left over

(adjective)

Accusative, neuter, singular of avaśiṣṭa

avaśiṣṭa - left, remaining, residual

Past Passive Participle

Formed from 'ava-' + 'śiṣ' root + '-ta' suffix.

Prefix: ava

Root: śiṣ (class 7)

Note: Agrees with 'alpakālam'.

अल्पकालम् (alpakālam) - a short time

(noun)

Accusative, masculine, singular of alpakāla

alpakāla - short time, brief period

Compound type : karmadhāraya (alpa+kāla)

• alpa – little, small, short
  adjective
• kāla – time, period
  noun (masculine)

Note: Object of 'manvānāḥ'.

मन्वानाः (manvānāḥ) - considering, thinking

(adjective)

Nominative, masculine, plural of manvāna

manvāna - thinking, supposing, considering

Present Middle Participle

Formed from 'man' root + '-āna' suffix.

Root: man (class 8)

Note: Agrees with 'puruṣarṣabhāḥ'.

पुरुषर्षभाः (puruṣarṣabhāḥ) - best of men, mighty men

(noun)

Nominative, masculine, plural of puruṣarṣabha

puruṣarṣabha - bull among men, best of men, eminent man

Compound type : ṣaṣṭhī-tatpuruṣa (puruṣa+ṛṣabha)

• puruṣa – man, person, male
  noun (masculine)
• ṛṣabha – bull, chief, best
  noun (masculine)

Note: Subject of 'akārṣuḥ'.

वपुः (vapuḥ) - body, form

(noun)

Accusative, neuter, singular of vapus

vapus - body, form, figure

Note: Object of 'akārṣuḥ'.

अन्यत् (anyat) - another, different

(pronoun)

Nominative, neuter, singular of anya

anya - other, another, different

Note: Agrees with 'vapuḥ'.

इव (iva) - as if, like

(indeclinable)

अकार्षुः (akārṣuḥ) - they made, performed, did

(verb)

3rd person , plural, active, aorist (luṅ) of kṛ

Aorist Active

Root: kṛ (class 8)

उत्साहामरषचेष्टितैः (utsāhāmaraṣaceṣṭitaiḥ) - by acts of zeal and indignation

(noun)

Instrumental, neuter, plural of utsāhāmaraṣaceṣṭita

utsāhāmaraṣaceṣṭita - act of zeal and indignation

Compound type : dvandva (utsāha+amaraṣa+ceṣṭita)

• utsāha – zeal, enthusiasm, energy, effort
  noun (masculine)
  Prefix: ud
  Root: sah (class 1)
• amaraṣa – impatience, indignation, anger
  noun (masculine)
  Prefix: a
  Root: mṛṣ (class 1)
• ceṣṭita – action, deed, effort, activity
  noun (neuter)
  Past Passive Participle (used as noun)
  Formed from 'ceṣṭ' root + '-ta' suffix.
  Root: ceṣṭ (class 1)

Note: It's an instrumental plural compound explaining *how* they transformed themselves.