वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-32, verse-6

प्रेक्षतो राक्षसेन्द्रस्य तान्यनीकानि भागशः ।
राघवप्रियकामार्थं लङ्कामारुरुहुस्तदा ॥६॥

6. prekṣato rākṣasendrasya tānyanīkāni bhāgaśaḥ ,
rāghavapriyakāmārthaṃ laṅkāmāruruhustadā.

6. prekṣataḥ rākṣasendrasya tāni anīkāni bhāgaśaḥ
rāghavapriyakāmārtham laṅkām āruruhuḥ tadā

6. tadā rākṣasendrasya prekṣataḥ tāni anīkāni
bhāgaśaḥ rāghavapriyakāmārtham laṅkām āruruhuḥ

6. While the king of demons (rākṣasa) watched, those divisions of armies then ascended Lanka, intent on fulfilling Rama's cherished wish.

Words meanings summery:

• प्रेक्षतः (prekṣataḥ) - while looking on, of him who was watching

• राक्षसेन्द्रस्य (rākṣasendrasya) - of Ravana, the king of demons (of the king of demons (rākṣasas))

• तानि (tāni) - those

• अनीकानि (anīkāni) - armies, troops, divisions

• भागशः (bhāgaśaḥ) - in parts, in divisions, separately

• राघवप्रियकामार्थम् (rāghavapriyakāmārtham) - for the sake of Rama's cherished desire

• लङ्काम् (laṅkām) - Lanka, the capital of Ravana (Lanka)

• आरुरुहुः (āruruhuḥ) - they ascended, they climbed

• तदा (tadā) - then, at that time

Words meanings and morphology

प्रेक्षतः (prekṣataḥ) - while looking on, of him who was watching

(adjective)

Genitive, masculine, singular of prekṣat

prekṣat - looking on, watching, perceiving

Present Active Participle

from pra-√īkṣ (to look at), genitive singular

Prefix: pra

Root: īkṣ (class 1)

Note: Agrees with rākṣasendrasya

राक्षसेन्द्रस्य (rākṣasendrasya) - of Ravana, the king of demons (of the king of demons (rākṣasas))

(noun)

Genitive, masculine, singular of rākṣasendra

rākṣasendra - king of demons (rākṣasas), chief of demons

Compound type : tatpuruṣa (rākṣasa+indra)

• rākṣasa – demon, evil spirit
  noun (masculine)
• indra – chief, king, lord
  noun (masculine)

Note: Refers to Ravana

तानि (tāni) - those

(pronoun)

Nominative, neuter, plural of tad

tad - that, those

Note: Agrees with anīkāni

अनीकानि (anīkāni) - armies, troops, divisions

(noun)

Nominative, neuter, plural of anīka

anīka - army, host, troop, division

भागशः (bhāgaśaḥ) - in parts, in divisions, separately

(indeclinable)

suffix -śaḥ

राघवप्रियकामार्थम् (rāghavapriyakāmārtham) - for the sake of Rama's cherished desire

(indeclinable)

Compound type : tatpuruṣa (rāghava+priya+kāma+artham)

• rāghava – Rama
  proper noun (masculine)
• priya – dear, beloved, cherished
  adjective (masculine)
• kāma – desire, wish
  noun (masculine)
  Root: kam (class 1)
• artham – for the sake of, for the purpose of
  indeclinable

लङ्काम् (laṅkām) - Lanka, the capital of Ravana (Lanka)

(proper noun)

Accusative, feminine, singular of laṅkā

laṅkā - Lanka, the capital of Ravana

आरुरुहुः (āruruhuḥ) - they ascended, they climbed

(verb)

3rd person , plural, active, perfect (liṭ) of ā-ruh

Perfect Active

3rd person plural, perfect active, Parasmaipada

Prefix: ā

Root: ruh (class 1)

तदा (tadā) - then, at that time

(indeclinable)

from tad + dā