महाभारतः mahābhārataḥ - book-3, chapter-272, verse-12

रावणिस्तु यदा नैनं विशेषयति सायकैः ।
ततो गुरुतरं यत्नमातिष्ठद्बलिनां वरः ॥१२॥

12. rāvaṇistu yadā nainaṁ viśeṣayati sāyakaiḥ ,
tato gurutaraṁ yatnamātiṣṭhadbalināṁ varaḥ.

12. rāvaṇiḥ tu yadā na enam viśeṣayati sāyakaiḥ
tataḥ gurutarām yatnam ātiṣṭhat balinām varaḥ

12. But when Rāvaṇa's son was unable to defeat him with his arrows, then the foremost among the mighty warriors undertook a more strenuous effort.

Words meanings summery:

• रावणिः (rāvaṇiḥ) - Indrajit, Rāvaṇa's son (son of Rāvaṇa)

• तु (tu) - but, indeed, however

• यदा (yadā) - when, at which time

• न (na) - not, no

• एनम् (enam) - Lakṣmaṇa (him, this one)

• विशेषयति (viśeṣayati) - surpasses, distinguishes, defeats

• सायकैः (sāyakaiḥ) - with arrows

• ततः (tataḥ) - then, thence, therefore

• गुरुतराम् (gurutarām) - greater, heavier, more significant

• यत्नम् (yatnam) - effort, exertion, endeavor

• आतिष्ठत् (ātiṣṭhat) - he undertook, resorted to, adopted

• बलिनाम् (balinām) - of the strong, of the powerful

• वरः (varaḥ) - best, excellent, choicest

Words meanings and morphology

रावणिः (rāvaṇiḥ) - Indrajit, Rāvaṇa's son (son of Rāvaṇa)

(proper noun)

Nominative, masculine, singular of rāvaṇi

rāvaṇi - son of Rāvaṇa

patronymic from Rāvaṇa

तु (tu) - but, indeed, however

(indeclinable)

यदा (yadā) - when, at which time

(indeclinable)

न (na) - not, no

(indeclinable)

एनम् (enam) - Lakṣmaṇa (him, this one)

(pronoun)

Accusative, masculine, singular of ena

ena - this, that, he, she, it

विशेषयति (viśeṣayati) - surpasses, distinguishes, defeats

(verb)

3rd person , singular, active, present (laṭ) of vi√śiṣ

causative

causative form of root śiṣ with prefix vi

Prefix: vi

Root: śiṣ (class 7)

सायकैः (sāyakaiḥ) - with arrows

(noun)

Instrumental, masculine, plural of sāyaka

sāyaka - arrow, dart

ततः (tataḥ) - then, thence, therefore

(indeclinable)

गुरुतराम् (gurutarām) - greater, heavier, more significant

(adjective)

Accusative, feminine, singular of gurutarā

gurutarā - greater, heavier, more significant

comparative of guru

Note: Agrees with yatnam.

यत्नम् (yatnam) - effort, exertion, endeavor

(noun)

Accusative, masculine, singular of yatna

yatna - effort, exertion, endeavor

Note: Object of ātiṣṭhat.

आतिष्ठत् (ātiṣṭhat) - he undertook, resorted to, adopted

(verb)

3rd person , singular, active, past imperfect (laṅ) of ā√sthā

root with prefix ā

Prefix: ā

Root: sthā (class 1)

बलिनाम् (balinām) - of the strong, of the powerful

(adjective)

Genitive, masculine, plural of balin

balin - strong, powerful, mighty

possessive suffix -in added to bala

Note: Qualifies varaḥ.

वरः (varaḥ) - best, excellent, choicest

(noun)

Nominative, masculine, singular of vara

vara - best, excellent, choicest; boon

Note: Subject of ātiṣṭhat.