योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-27, verse-54

तरत्तारतरङ्गासु दोलनं सरसालिनाम् ।
चलच्छदपटालीषु राजहंस्यं मया कृतम् ॥ ५४ ॥

tarattārataraṅgāsu dolanaṃ sarasālinām ,
calacchadapaṭālīṣu rājahaṃsyaṃ mayā kṛtam 54

54. tarattārataraṅgāsu dolanaṃ sarasālinām
calacchadapaṭālīṣu rājahaṃsyaṃ mayā kṛtam

54. mayā tarattārataraṅgāsu sarasālinām dolanaṃ
kṛtam calacchadapaṭālīṣu rājahaṃsyaṃ kṛtam

54. I experienced swaying among rows of aquatic birds upon the swift, floating waves, and I assumed the form of a royal swan amidst rows of trembling leaf-canopies.

Words meanings summery:

• तरत्तारतरङ्गासु (tarattārataraṅgāsu) - upon the swift, floating waves (on swift, floating waves; on waves that cross swiftly)

• दोलनं (dolanaṁ) - the swaying (swaying, swinging, rocking)

• सरसालिनाम् (sarasālinām) - of rows of aquatic birds (of rows of lakes, of rows of aquatic beings/birds)

• चलच्छदपटालीषु (calacchadapaṭālīṣu) - amidst rows of trembling leaf-canopies (on rows of moving leaf-canopies, amidst trembling foliage covers)

• राजहंस्यं (rājahaṁsyaṁ) - the form/state of a royal swan (the state of being a royal swan, royal swan-like nature)

• मया (mayā) - by me

• कृतम् (kṛtam) - was done, was experienced, was assumed (done, performed, made, accomplished)

Words meanings and morphology

तरत्तारतरङ्गासु (tarattārataraṅgāsu) - upon the swift, floating waves (on swift, floating waves; on waves that cross swiftly)

(noun)

Locative, feminine, plural of tarattārataraṅgā

tarattārataraṅgā - swift, floating wave

Compound type : tatpuruṣa (tarat+tāra+taraṅgā)

• tarat – floating, crossing, swimming
  verbal derivative (masculine)
  Present Active Participle
  Derived from the root 'tṛ' (to cross, swim, float).
  Root: tṛ (class 1)
• tāra – swift, quick, clear, bright
  adjective (masculine)
• taraṅgā – a wave, billow
  noun (feminine)

दोलनं (dolanaṁ) - the swaying (swaying, swinging, rocking)

(noun)

Nominative, neuter, singular of dolana

dolana - swaying, swinging, rocking

Nominalization

Derived from the root 'dul' (to swing, sway) with the suffix '-ana'.

Root: dul (class 1)

सरसालिनाम् (sarasālinām) - of rows of aquatic birds (of rows of lakes, of rows of aquatic beings/birds)

(noun)

Genitive, masculine, plural of sarasālin

sarasālin - one dwelling in a lake; a line of lakes; a row of aquatic birds/swans

Compound type : tatpuruṣa (saras+ālin)

• saras – a lake, pond, pool; water
  noun (neuter)
• ālin – a row, line, range; bee (if from āli)
  noun (feminine)

चलच्छदपटालीषु (calacchadapaṭālīṣu) - amidst rows of trembling leaf-canopies (on rows of moving leaf-canopies, amidst trembling foliage covers)

(noun)

Locative, feminine, plural of calacchadapaṭālī

calacchadapaṭālī - a row of moving leaf-canopies/foliage covers

Compound type : tatpuruṣa (calat+chada+paṭa+ālī)

• calat – moving, trembling, shaking
  verbal derivative (masculine)
  Present Active Participle
  Derived from the root 'cal' (to move, shake).
  Root: cal (class 1)
• chada – a leaf, a covering, a canopy
  noun (masculine)
• paṭa – a cloth, garment, strip of cloth, expanse
  noun (masculine)
• ālī – a row, line, range, series
  noun (feminine)

राजहंस्यं (rājahaṁsyaṁ) - the form/state of a royal swan (the state of being a royal swan, royal swan-like nature)

(noun)

Nominative, neuter, singular of rājahaṃsya

rājahaṁsya - the state or nature of a royal swan

Derived from 'rājahaṃsa' (royal swan) by adding the suffix '-ya' for abstract noun.

मया (mayā) - by me

(pronoun)

Instrumental, singular of mad

mad - I

कृतम् (kṛtam) - was done, was experienced, was assumed (done, performed, made, accomplished)

(verbal derivative)