योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-14, verse-14

क्षणादवापतुस्तत्र पुष्पलोलतरङ्गिणीम् ।
समङ्गां सरितं साधु सर्वपुष्पमयीमिव ॥ १४ ॥

kṣaṇādavāpatustatra puṣpalolataraṅgiṇīm ,
samaṅgāṃ saritaṃ sādhu sarvapuṣpamayīmiva 14

14. kṣaṇāt avāpatuḥ tatra puṣpa-lola-taraṅgiṇīm
samaṅgām saritam sādhu sarva-puṣpa-mayīm iva

14. kṣaṇāt tatra tau puṣpa-lola-taraṅgiṇīm samaṅgām
saritam sādhu sarva-puṣpa-mayīm iva avāpatuḥ

14. In a moment, those two reached the river Samangā, whose waves were playfully adorned with flowers, and which truly seemed to be made entirely of flowers.

Words meanings summery:

• क्षणात् (kṣaṇāt) - in a moment, instantly, quickly

• अवापतुः (avāpatuḥ) - those two reached, obtained

• तत्र (tatra) - there, in that place

• पुष्प-लोल-तरङ्गिणीम् (puṣpa-lola-taraṅgiṇīm) - river with playful flower-waves

• समङ्गाम् (samaṅgām) - Name of a specific river mentioned in the Rāmāyaṇa. (Samangā (name of a river))

• सरितम् (saritam) - river

• साधु (sādhu) - truly, well, rightly, indeed

• सर्व-पुष्प-मयीम् (sarva-puṣpa-mayīm) - made entirely of flowers, full of all kinds of flowers

• इव (iva) - like, as, as if

Words meanings and morphology

क्षणात् (kṣaṇāt) - in a moment, instantly, quickly

(noun)

Ablative, masculine, singular of kṣaṇa

kṣaṇa - moment, instant, short time

Root: kṣaṇ (class 10)

Note: Indicates duration or point of time.

अवापतुः (avāpatuḥ) - those two reached, obtained

(verb)

3rd person , dual, active, perfect (lit) of avāp

past tense (reduplicated perfect)

From ava-āp

Prefixes: ava+ā

Root: āp (class 5)

Note: The subject is 'tau' (Rama and Lakshmana), implied from previous verse.

तत्र (tatra) - there, in that place

(indeclinable)

Note: Indicates location.

पुष्प-लोल-तरङ्गिणीम् (puṣpa-lola-taraṅgiṇīm) - river with playful flower-waves

(adjective)

Accusative, feminine, singular of puṣpa-lola-taraṅgiṇī

puṣpa-lola-taraṅgiṇī - (a river) whose waves are playfully moving with flowers

Bahuvrihi compound.

Compound type : bahuvrihi (puṣpa+lola+taraṅgiṇī)

• puṣpa – flower, blossom
  noun (neuter)
  Root: puṣ (class 4)
• lola – moving, trembling, playful, agitated
  adjective (feminine)
  Root: lul (class 1)
• taraṅgiṇī – river, stream (literally 'having waves')
  noun (feminine)
  From taraṅga (wave) + ini (suffix) + ī (feminine suffix)
  Root: tṛ (class 1)

Note: Modifies 'saritam'.

समङ्गाम् (samaṅgām) - Name of a specific river mentioned in the Rāmāyaṇa. (Samangā (name of a river))

(proper noun)

Accusative, feminine, singular of samaṅgā

samaṅgā - well-limbed, beautiful; name of a river

Note: Specifies the river.

सरितम् (saritam) - river

(noun)

Accusative, feminine, singular of sarit

sarit - river, stream

From sṛ (to flow)

Root: sṛ (class 1)

Note: Object of 'avāpatuḥ'.

साधु (sādhu) - truly, well, rightly, indeed

(indeclinable)

Root: sādh (class 5)

Note: Adverbial usage.

सर्व-पुष्प-मयीम् (sarva-puṣpa-mayīm) - made entirely of flowers, full of all kinds of flowers

(adjective)

Accusative, feminine, singular of sarva-puṣpa-mayī

sarva-puṣpa-mayī - consisting entirely of flowers, full of flowers

sarva-puṣpa (all flowers) + maya (made of) + ī (feminine suffix).

Compound type : karmadhāraya (sarva+puṣpa+mayī)

• sarva – all, every, entire
  adjective (feminine)
• puṣpa – flower, blossom
  noun (neuter)
  Root: puṣ (class 4)
• mayī – consisting of, full of, made of
  adjective suffix (feminine)
  Suffix maya + feminine ī.

Note: Modifies 'saritam'.

इव (iva) - like, as, as if

(indeclinable)