वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-31, verse-20

तौ त्वदीर्घेण कालेन भ्रातरौ रामलक्ष्मणौ ।
रावणस्य पुरीं लङ्कामासेदतुररिंदमौ ॥२०॥

20. tau tvadīrgheṇa kālena bhrātarau rāmalakṣmaṇau ,
rāvaṇasya purīṃ laṅkāmāsedaturariṃdamau.

20. tau tu adīrgheṇa kālena bhrātarau rāmalakṣmaṇau
rāvaṇasya purīm laṅkām āsedatuḥ arimdamau

20. tu tau bhrātarau Rāma-Lakṣmaṇau arimdamau
adīrgheṇa kālena Rāvaṇasya purīm Laṅkām āsedatuḥ

20. Indeed, those two brothers, Rāma and Lakṣmaṇa, the subduers of enemies, reached Rāvaṇa's city of Laṅkā in a short period of time.

Words meanings summery:

• तौ (tau) - those two (referring to Rāma and Lakṣmaṇa) (those two, they two)

• तु (tu) - indeed (an emphatic particle) (but, indeed, however)

• अदीर्घेण (adīrgheṇa) - in a short (period of time) (not long, short)

• कालेन (kālena) - in a period of time (by time, in time, due to time)

• भ्रातरौ (bhrātarau) - the two brothers (two brothers)

• रामलक्ष्मणौ (rāmalakṣmaṇau) - Rāma and Lakṣmaṇa

• रावणस्य (rāvaṇasya) - of Rāvaṇa

• पुरीम् (purīm) - the city (city, town, stronghold)

• लङ्काम् (laṅkām) - the city of Laṅkā (Laṅkā (name of an island city))

• आसेदतुः (āsedatuḥ) - they two reached (they two reached, they two attained)

• अरिम्दमौ (arimdamau) - the two subduers of enemies (subduers of enemies, vanquishers of foes (dual))

Words meanings and morphology

तौ (tau) - those two (referring to Rāma and Lakṣmaṇa) (those two, they two)

(pronoun)

Nominative, masculine, dual of tad

tad - that, he, she, it

तु (tu) - indeed (an emphatic particle) (but, indeed, however)

(indeclinable)

Note: Combines with following 'adīrgheṇa' via sandhi (tvadīrgheṇa).

अदीर्घेण (adīrgheṇa) - in a short (period of time) (not long, short)

(adjective)

Instrumental, masculine, singular of adīrgha

adīrgha - not long, short

Compound type : nañ-tatpuruṣa (a+dīrgha)

• a – not, non-, un-
  indeclinable
• dīrgha – long, extended
  adjective (masculine)

Note: Modifies 'kālena'.

कालेन (kālena) - in a period of time (by time, in time, due to time)

(noun)

Instrumental, masculine, singular of kāla

kāla - time, period, season

भ्रातरौ (bhrātarau) - the two brothers (two brothers)

(noun)

Nominative, masculine, dual of bhrātṛ

bhrātṛ - brother

Note: Refers to Rāma and Lakṣmaṇa.

रामलक्ष्मणौ (rāmalakṣmaṇau) - Rāma and Lakṣmaṇa

(proper noun)

Nominative, masculine, dual of rāmalakṣmaṇa

rāmalakṣmaṇa - Rāma and Lakṣmaṇa

Compound type : dvandva (rāma+lakṣmaṇa)

• rāma – Rāma (a name, the protagonist of the Rāmāyaṇa)
  proper noun (masculine)
• lakṣmaṇa – Lakṣmaṇa (a name, brother of Rāma)
  proper noun (masculine)

रावणस्य (rāvaṇasya) - of Rāvaṇa

(proper noun)

Genitive, masculine, singular of rāvaṇa

rāvaṇa - Rāvaṇa (a name, the king of Laṅkā)

Note: Modifies 'purīm'.

पुरीम् (purīm) - the city (city, town, stronghold)

(noun)

Accusative, feminine, singular of purī

purī - city, town, stronghold, palace

लङ्काम् (laṅkām) - the city of Laṅkā (Laṅkā (name of an island city))

(proper noun)

Accusative, feminine, singular of laṅkā

laṅkā - Laṅkā (the island city, capital of Rāvaṇa)

आसेदतुः (āsedatuḥ) - they two reached (they two reached, they two attained)

(verb)

3rd person , dual, active, past perfect (lit) of āsedatu

Perfect Tense

From root 'sad' (to sit, settle, go) with upasarga 'ā'

Prefix: ā

Root: sad (class 1)

अरिम्दमौ (arimdamau) - the two subduers of enemies (subduers of enemies, vanquishers of foes (dual))

(noun)

Nominative, masculine, dual of arimdama

arimdama - subduer of enemies, vanquisher of foes

Compound type : upapada-tatpuruṣa (ari+dama)

• ari – enemy, foe
  noun (masculine)
• dama – subduing, taming, controlling
  noun (masculine)
  From root 'dam' (to subdue, tame)
  Root: dam (class 4)

Note: Refers to Rāma and Lakṣmaṇa.