वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-3, verse-19

लङ्का पुरी निरालम्बा देवदुर्गा भयावहा ।
नादेयं पार्वतं वन्यं कृत्रिमं च चतुर्विधम् ॥१९॥

19. laṅkā purī nirālambā devadurgā bhayāvahā ,
nādeyaṃ pārvataṃ vanyaṃ kṛtrimaṃ ca caturvidham.

19. laṅkā purī nirālambā devadurgā bhayāvahā
nādeyam pārvatam vanyam kṛtrimam ca caturvidham

19. laṅkā purī nirālambā devadurgā bhayāvahā
nādeyam pārvatam vanyam kṛtrimam ca caturvidham

19. The city of Laṅkā stands isolated, a divine fortress, and is terrifying. It possesses four types of defenses: those related to rivers, mountains, forests, and artificial ones.

Words meanings summery:

• लङ्का (laṅkā) - Laṅkā

• पुरी (purī) - city, town

• निरालम्बा (nirālambā) - unsupported, without support, isolated, independent

• देवदुर्गा (devadurgā) - a divine fortress, fortress of the gods

• भयावहा (bhayāvahā) - terrifying, formidable, causing fear

• नादेयम् (nādeyam) - river-based (defense) (riverine, related to a river, produced from a river)

• पार्वतम् (pārvatam) - mountain-based (defense) (mountainous, related to a mountain, residing in mountains)

• वन्यम् (vanyam) - forest-based (defense) (forest-like, wild, related to a forest)

• कृत्रिमम् (kṛtrimam) - artificial, man-made, factitious

• च (ca) - and

• चतुर्विधम् (caturvidham) - of four kinds, four-fold

Words meanings and morphology

लङ्का (laṅkā) - Laṅkā

(proper noun)

Nominative, feminine, singular of laṅkā

laṅkā - Laṅkā (proper name of the island kingdom of Rāvaṇa)

पुरी (purī) - city, town

(noun)

Nominative, feminine, singular of purī

purī - city, town, fortress

निरालम्बा (nirālambā) - unsupported, without support, isolated, independent

(adjective)

Nominative, feminine, singular of nirālambā

nirālamba - unsupported, independent, without a base or prop

Compound type : bahuvrīhi (nis+ālamba)

• nis – out, forth, without
  indeclinable
  Prefix
• ālamba – support, prop, stay
  noun (masculine)
  Prefix: ā
  Root: lab (class 1)

देवदुर्गा (devadurgā) - a divine fortress, fortress of the gods

(noun)

Nominative, feminine, singular of devadurgā

devadurgā - fortress of the gods, a divinely protected stronghold

Compound type : tatpuruṣa (deva+durgā)

• deva – god, divine being
  noun (masculine)
  Root: div (class 4)
• durgā – fortress, inaccessible place, difficult to reach
  noun (feminine)
  Derived from root gam (to go) with upasarga dur- (difficult) and kṛt suffix -ga.
  Prefix: dur
  Root: gam (class 1)

भयावहा (bhayāvahā) - terrifying, formidable, causing fear

(adjective)

Nominative, feminine, singular of bhayāvahā

bhayāvaha - bringing fear, terrifying, dreadful

Derived from bhaya (fear) and root vah (to carry, bring).

Prefix: ā

Root: vah (class 1)

नादेयम् (nādeyam) - river-based (defense) (riverine, related to a river, produced from a river)

(adjective)

Nominative, neuter, singular of nādeya

nādeya - riverine, belonging to a river, coming from a river

Derived from nadī (river) with a patronymic/relational suffix -eya (ḍhak).

पार्वतम् (pārvatam) - mountain-based (defense) (mountainous, related to a mountain, residing in mountains)

(adjective)

Nominative, neuter, singular of pārvata

pārvata - mountainous, coming from a mountain, living in mountains

Derived from parvata (mountain) with suffix -a (aṇ) meaning 'belonging to' or 'from'.

वन्यम् (vanyam) - forest-based (defense) (forest-like, wild, related to a forest)

(adjective)

Nominative, neuter, singular of vanya

vanya - forest-dwelling, wild, growing in the forest, belonging to the forest

Derived from vana (forest) with suffix -ya (yat).

कृत्रिमम् (kṛtrimam) - artificial, man-made, factitious

(adjective)

Nominative, neuter, singular of kṛtrima

kṛtrima - artificial, factitious, not natural, made, fabricated

Derived from root kṛ (to do, make) with the suffix -trima.

Root: kṛ (class 8)

च (ca) - and

(indeclinable)

चतुर्विधम् (caturvidham) - of four kinds, four-fold

(adjective)

Nominative, neuter, singular of caturvidha

caturvidha - of four kinds or sorts, four-fold

Compound type : bahuvrīhi (catur+vidha)

• catur – four
  numeral
• vidha – kind, sort, manner, form
  noun (masculine)