वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-5, verse-21

दक्षिणस्योदधेस्तीरे त्रिकूटो नाम पर्वतः ।
शिखरे तस्य शैलस्य मध्यमे ऽम्बुदसंनिभे ।
शकुनैरपि दुष्प्रापे टङ्कच्छिन्नचतुर्दिशि ॥२१॥

21. dakṣiṇasyodadhestīre trikūṭo nāma parvataḥ ,
śikhare tasya śailasya madhyame'mbudasaṃnibhe ,
śakunairapi duṣprāpe ṭaṅkacchinnacaturdiśi.

21. dakṣiṇasya udadheḥ tīre trikūṭaḥ
nāma parvataḥ śikhare tasya śailasya
madhyame ambudasaṃnibhe śakunaiḥ
api duṣprāpe ṭaṅkacchinnacaturdiśi

21. dakṣiṇasya udadheḥ tīre trikūṭaḥ nāma
parvataḥ asti tasya śailasya madhyame
ambudasaṃnibhe śakunaiḥ api duṣprāpe
ṭaṅkacchinnacaturdiśi śikhare (sthitaṃ nagaram)

21. On the shore of the southern ocean, there is a mountain named Trikūṭa. On the middle peak of that mountain, which resembles a cloud, is a place difficult to reach even for birds, appearing as if it were carved on all four sides by a chisel.

Words meanings summery:

• दक्षिणस्य (dakṣiṇasya) - of the southern (ocean) (of the southern, of the right)

• उदधेः (udadheḥ) - of the ocean

• तीरे (tīre) - on the shore, on the bank

• त्रिकूटः (trikūṭaḥ) - Trikūṭa (name of a mountain)

• नाम (nāma) - by name, indeed

• पर्वतः (parvataḥ) - mountain, hill

• शिखरे (śikhare) - on the peak, on the summit

• तस्य (tasya) - of that (mountain) (of that)

• शैलस्य (śailasya) - of the mountain

• मध्यमे (madhyame) - on the middle (peak) (on the middle, on the central)

• अम्बुदसंनिभे (ambudasaṁnibhe) - (on the peak) resembling a cloud (resembling a cloud, cloud-like)

• शकुनैः (śakunaiḥ) - by birds

• अपि (api) - even, also, too

• दुष्प्रापे (duṣprāpe) - (a place) difficult to reach (difficult to reach, inaccessible)

• टङ्कच्छिन्नचतुर्दिशि (ṭaṅkacchinnacaturdiśi) - carved on all four sides by a chisel

Words meanings and morphology

दक्षिणस्य (dakṣiṇasya) - of the southern (ocean) (of the southern, of the right)

(adjective)

Genitive, masculine/neuter, singular of dakṣiṇa

dakṣiṇa - southern, right, skillful

उदधेः (udadheḥ) - of the ocean

(noun)

Genitive, masculine, singular of udadhi

udadhi - ocean, sea

तीरे (tīre) - on the shore, on the bank

(noun)

Locative, neuter, singular of tīra

tīra - shore, bank, edge

त्रिकूटः (trikūṭaḥ) - Trikūṭa (name of a mountain)

(proper noun)

Nominative, masculine, singular of trikūṭa

trikūṭa - three-peaked (mountain), name of a mountain

Compound type : Dvigu (tri+kūṭa)

• tri – three
  indeclinable
• kūṭa – peak, horn, summit
  noun (masculine/neuter)

नाम (nāma) - by name, indeed

(indeclinable)

पर्वतः (parvataḥ) - mountain, hill

(noun)

Nominative, masculine, singular of parvata

parvata - mountain, hill

शिखरे (śikhare) - on the peak, on the summit

(noun)

Locative, neuter, singular of śikhara

śikhara - peak, summit, top

तस्य (tasya) - of that (mountain) (of that)

(pronoun)

Genitive, masculine/neuter, singular of tad

tad - that, he, she, it

शैलस्य (śailasya) - of the mountain

(noun)

Genitive, masculine, singular of śaila

śaila - mountain, rock, hill

मध्यमे (madhyame) - on the middle (peak) (on the middle, on the central)

(adjective)

Locative, neuter, singular of madhyama

madhyama - middle, central, intermediate

अम्बुदसंनिभे (ambudasaṁnibhe) - (on the peak) resembling a cloud (resembling a cloud, cloud-like)

(adjective)

Locative, neuter, singular of ambudasaṃnibha

ambudasaṁnibha - resembling a cloud

Compound type : Tatpuruṣa (ambuda+saṃnibha)

• ambuda – cloud (lit. water-giver)
  noun (masculine)
• saṃnibha – resembling, similar to, like
  adjective (masculine/neuter)

शकुनैः (śakunaiḥ) - by birds

(noun)

Instrumental, masculine, plural of śakuna

śakuna - bird, omen, portent

अपि (api) - even, also, too

(indeclinable)

दुष्प्रापे (duṣprāpe) - (a place) difficult to reach (difficult to reach, inaccessible)

(adjective)

Locative, neuter, singular of duṣprāpa

duṣprāpa - difficult to obtain, hard to reach

Compound type : Prādisamāsa (dur+prāpa)

• dur – bad, difficult, ill
  indeclinable
• prāpa – attainable, reaching, obtaining
  adjective (masculine/neuter)
  Gerundive
  Derived from root āp (to obtain) with prefix pra
  Prefix: pra
  Root: āp

टङ्कच्छिन्नचतुर्दिशि (ṭaṅkacchinnacaturdiśi) - carved on all four sides by a chisel

(adjective)

Locative, neuter, singular of ṭaṅkacchinnacaturdiś

ṭaṅkacchinnacaturdiś - having its four directions cut by a chisel

Compound type : Bahuvrīhi (ṭaṅka+chinna+caturdiś)

• ṭaṅka – chisel, pickaxe, axe
  noun (masculine)
• chinna – cut, severed, carved
  adjective (masculine/neuter/feminine)
  Past Passive Participle
  Derived from root chid (to cut)
  Root: chid (class 7)
• caturdiś – four directions
  noun (feminine)