वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-1, chapter-53, verse-15

अप्रमेयबलं तुभ्यं न त्वया बलवत्तरः ।
विश्वामित्रो महावीर्यस्तेजस्तव दुरासदम् ॥१५॥

15. aprameyabalaṃ tubhyaṃ na tvayā balavattaraḥ ,
viśvāmitro mahāvīryastejastava durāsadam.

15. aprameyabalam tubhyam na tvayā balavattaraḥ
viśvāmitraḥ mahāvīryaḥ tejaḥ tava durāsadam

15. tubhyam aprameyabalam tvayā balavattaraḥ na
viśvāmitraḥ mahāvīryaḥ tava tejaḥ durāsadam

15. Your strength is immeasurable, and no one is stronger than you. Even the greatly valorous Viśvāmitra finds your splendor unassailable.

Words meanings summery:

• अप्रमेयबलम् (aprameyabalam) - immeasurable strength, power beyond measure

• तुभ्यम् (tubhyam) - to you, for you

• न (na) - not, no

• त्वया (tvayā) - by you

• बलवत्तरः (balavattaraḥ) - stronger, mightier

• विश्वामित्रः (viśvāmitraḥ) - Viśvāmitra

• महावीर्यः (mahāvīryaḥ) - very mighty, greatly valorous, extremely heroic

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

• तव (tava) - your, of you

• दुरासदम् (durāsadam) - unapproachable, unconquerable, unassailable, formidable

Words meanings and morphology

अप्रमेयबलम् (aprameyabalam) - immeasurable strength, power beyond measure

(noun)

Nominative, neuter, singular of aprameyabala

aprameyabala - immeasurable power, strength that cannot be gauged

Compound type : tatpurusha (aprameya+bala)

• aprameya – immeasurable, unknowable, incomprehensible
  adjective
  Gerundive
  Formed with 'a' (negation) + root mā (to measure) + suffix -ya (gerundive).
  Prefix: pra
  Root: mā (class 3)
• bala – strength, power, force, might, army
  noun (neuter)

Note: Can also be accusative singular. Here, it is the predicate adjective to an implied 'is'.

तुभ्यम् (tubhyam) - to you, for you

(pronoun)

Dative, singular of yuṣmad

yuṣmad - you

Note: The dative case indicates possession here 'to you belongs (immeasurable strength)'.

न (na) - not, no

(indeclinable)

त्वया (tvayā) - by you

(pronoun)

Instrumental, singular of yuṣmad

yuṣmad - you

Note: Used here in a comparative sense, 'than you'.

बलवत्तरः (balavattaraḥ) - stronger, mightier

(adjective)

Nominative, masculine, singular of balavat

balavat - strong, powerful, mighty

Comparative degree of balavat.

Note: Comparative suffix -tara.

विश्वामित्रः (viśvāmitraḥ) - Viśvāmitra

(proper noun)

Nominative, masculine, singular of viśvāmitra

viśvāmitra - a celebrated ancient sage

Note: The sage Viśvāmitra, known for his tapas and rivalry with Vasiṣṭha.

महावीर्यः (mahāvīryaḥ) - very mighty, greatly valorous, extremely heroic

(adjective)

Nominative, masculine, singular of mahāvīrya

mahāvīrya - of great valor, very mighty, having great energy

Compound type : karmadhāraya (mahā+vīrya)

• mahat – great, large, extensive, mighty
  adjective
  Stem mahā used in compounds.
• vīrya – valor, heroism, might, power, energy, virility
  noun (neuter)
  From root vīr (to be powerful).
  Root: vīr

Note: Adjective for Viśvāmitra.

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

(noun)

Nominative, neuter, singular of tejas

tejas - brilliance, light, splendor, energy, spiritual power, fiery energy

From root tij (to be sharp).

Root: tij

Note: Refers to the divine or spiritual brilliance.

तव (tava) - your, of you

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

Note: Possessive pronoun.

दुरासदम् (durāsadam) - unapproachable, unconquerable, unassailable, formidable

(adjective)

Nominative, neuter, singular of durāsada

durāsada - difficult to approach, hard to overcome, unassailable

Compound of 'dur-' (difficult, bad) + 'āsada' (approachable).

Prefixes: dur+ā

Root: sad (class 1)

Note: Agrees with tejaḥ.