वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-49, verse-12

प्रकृत्या ह्येष तेजस्वी कुम्भकर्णो महाबलः ।
अन्येषां राक्षसेन्द्राणां वरदानकृतं बलम् ॥१२॥

12. prakṛtyā hyeṣa tejasvī kumbhakarṇo mahābalaḥ ,
anyeṣāṃ rākṣasendrāṇāṃ varadānakṛtaṃ balam.

12. prakṛtyā hi eṣa tejasvī kumbhakarṇaḥ mahābalaḥ
anyeṣām rākṣasendrāṇām varadānakṛtam balam

12. eṣaḥ kumbhakarṇaḥ prakṛtyā hi tejasvī mahābalaḥ
anyeṣām rākṣasendrāṇām balam varadānakṛtam

12. Indeed, this Kumbhakarna possesses great prowess and immense strength by his very nature (prakṛti). The power of other lords of rākṣasas, however, is derived from boons.

Words meanings summery:

• प्रकृत्या (prakṛtyā) - by nature, by origin, by fundamental constitution

• हि (hi) - indeed, surely, because, for

• एष (eṣa) - referring to Kumbhakarna (this, this one)

• तेजस्वी (tejasvī) - radiant, powerful, splendid, energetic

• कुम्भकर्णः (kumbhakarṇaḥ) - Kumbhakarna (name of a rākṣasa)

• महाबलः (mahābalaḥ) - mighty, greatly strong, very powerful

• अन्येषाम् (anyeṣām) - of others

• राक्षसेन्द्राणाम् (rākṣasendrāṇām) - of the lords of rākṣasas, of the chiefs among rākṣasas

• वरदानकृतम् (varadānakṛtam) - made by a boon, obtained by a boon, caused by a boon

• बलम् (balam) - strength, power, force

Words meanings and morphology

प्रकृत्या (prakṛtyā) - by nature, by origin, by fundamental constitution

(noun)

Instrumental, feminine, singular of prakṛti

prakṛti - nature, origin, fundamental constitution, primordial matter

Prefix: pra

Root: kṛ (class 8)

हि (hi) - indeed, surely, because, for

(indeclinable)

एष (eṣa) - referring to Kumbhakarna (this, this one)

(pronoun)

Nominative, masculine, singular of etad

etad - this

Note: Sandhi form of 'eṣaḥ'

तेजस्वी (tejasvī) - radiant, powerful, splendid, energetic

(adjective)

Nominative, masculine, singular of tejasvin

tejasvin - radiant, powerful, splendid, energetic

Possessive suffix -vin added to tejas.

कुम्भकर्णः (kumbhakarṇaḥ) - Kumbhakarna (name of a rākṣasa)

(proper noun)

Nominative, masculine, singular of kumbhakarṇa

kumbhakarṇa - Kumbhakarna (name of a rākṣasa); pot-eared

Compound type : bahuvrihi (kumbha+karṇa)

• kumbha – pot, pitcher
  noun (masculine)
• karṇa – ear
  noun (masculine)

महाबलः (mahābalaḥ) - mighty, greatly strong, very powerful

(adjective)

Nominative, masculine, singular of mahābala

mahābala - mighty, greatly strong, very powerful

Compound type : bahuvrihi (mahā+bala)

• mahā – great, large
  adjective
• bala – strength, power, force
  noun (neuter)

अन्येषाम् (anyeṣām) - of others

(pronoun)

Genitive, masculine, plural of anya

anya - other, different

राक्षसेन्द्राणाम् (rākṣasendrāṇām) - of the lords of rākṣasas, of the chiefs among rākṣasas

(noun)

Genitive, masculine, plural of rākṣasendra

rākṣasendra - chief of rākṣasas, lord of rākṣasas

Compound type : tatpurusha (rākṣasa+indra)

• rākṣasa – rākṣasa (a type of demon)
  noun (masculine)
• indra – lord, chief, Indra
  noun (masculine)

वरदानकृतम् (varadānakṛtam) - made by a boon, obtained by a boon, caused by a boon

(adjective)

neuter, singular of varadānakṛta

varadānakṛta - made by a boon, obtained by a boon, caused by a boon

Compound type : tatpurusha (varadāna+kṛta)

• varadāna – granting of a boon, a boon
  noun (neuter)
• kṛta – made, done, caused
  adjective (neuter)
  Past Passive Participle
  From root kṛ (to do, make)
  Root: kṛ (class 8)

Note: Agreeing with 'balam'.

बलम् (balam) - strength, power, force

(noun)

neuter, singular of bala

bala - strength, power, force

Note: Subject or object of an implied verb. In context, it is the subject "the strength (is) made by a boon".