वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-1, chapter-13, verse-27

पतत्रिणा तदा सार्धं सुस्थितेन च चेतसा ।
अवसद् रजनीमेकां कौसल्या धर्मकाम्यया ॥२७॥

27. patatriṇā tadā sārdhaṃ susthitena ca cetasā ,
avasad rajanīmekāṃ kausalyā dharmakāmyayā.

27. patatriṇā tadā sārdham susthitena ca cetasā
avasat rajanīm ekām kausalyā dharmakāmyayā

27. tadā kausalyā susthitena cetasā ca patatriṇā
sārdham ekām rajanīm dharmakāmyayā avasat

27. Then, Kaushalya, with a tranquil mind, stayed one night together with that winged creature (the horse), motivated by the desire for religious merit (dharma).

Words meanings summery:

• पतत्रिणा (patatriṇā) - with the (sacrificial) horse (with the winged creature, with the bird, with the horse)

• तदा (tadā) - then (after the slaughter) (then, at that time)

• सार्धम् (sārdham) - together with (the horse) (together with, along with)

• सुस्थितेन (susthitena) - tranquil (mind) (well-situated, tranquil, firm)

• च (ca) - and (and, also)

• चेतसा (cetasā) - with a tranquil mind (with mind, with heart, with consciousness)

• अवसत् (avasat) - stayed (for the night) (stayed, dwelt, resided)

• रजनीम् (rajanīm) - one night (night)

• एकाम् (ekām) - one (night) (one, a single)

• कौसल्या (kausalyā) - King Dasharatha's chief queen and Rama's mother (Kaushalya)

• धर्मकाम्यया (dharmakāmyayā) - motivated by the desire for religious merit (dharma) (with the desire for dharma, for religious merit)

Words meanings and morphology

पतत्रिणा (patatriṇā) - with the (sacrificial) horse (with the winged creature, with the bird, with the horse)

(noun)

Instrumental, masculine, singular of patatrin

patatrin - winged creature, bird, horse (as having wings in a metaphorical sense, or swift)

From patatra (wing, feather) + suffix in.

Root: pat

तदा (tadā) - then (after the slaughter) (then, at that time)

(indeclinable)

From pronoun tad + suffix dā.

सार्धम् (sārdham) - together with (the horse) (together with, along with)

(indeclinable)

Governs instrumental case.

सुस्थितेन (susthitena) - tranquil (mind) (well-situated, tranquil, firm)

(adjective)

Instrumental, neuter, singular of susthita

susthita - well-situated, firm, tranquil, well-established

Past Passive Participle

From root sthā with prefix su.

Prefix: su

Root: sthā (class 1)

च (ca) - and (and, also)

(indeclinable)

Conjunction.

चेतसा (cetasā) - with a tranquil mind (with mind, with heart, with consciousness)

(noun)

Instrumental, neuter, singular of cetas

cetas - mind, heart, intelligence, consciousness

Stem ends in -as.

Root: cit

अवसत् (avasat) - stayed (for the night) (stayed, dwelt, resided)

(verb)

3rd person , singular, active, imperfect (laṅ) of vas

Imperfect tense, 3rd person singular, active voice

Root vas (to dwell).

Root: vas (class 1)

रजनीम् (rajanīm) - one night (night)

(noun)

Accusative, feminine, singular of rajanī

rajanī - night

From root raj (to color, to darken).

Root: raj

एकाम् (ekām) - one (night) (one, a single)

(adjective)

Accusative, feminine, singular of eka

eka - one, a single, unique

Numeral adjective.

Note: Agrees with rajanīm.

कौसल्या (kausalyā) - King Dasharatha's chief queen and Rama's mother (Kaushalya)

(proper noun)

Nominative, feminine, singular of kausalyā

kausalyā - Kaushalya (name of Dasharatha's queen)

Feminine patronymic from Kosala.

धर्मकाम्यया (dharmakāmyayā) - motivated by the desire for religious merit (dharma) (with the desire for dharma, for religious merit)

(noun)

Instrumental, feminine, singular of dharmakāmyā

dharmakāmyā - desire for religious merit, desire for duty/righteousness

Compound noun.

Compound type : tatpurusha (dharma+kāmyā)

• dharma – natural law, constitution, duty, righteousness, religious merit
  noun (masculine)
  From root dhṛ (to uphold, to sustain).
  Root: dhṛ (class 1)
• kāmyā – desire, longing
  noun (feminine)
  From root kam (to desire) + suffix ya.
  Root: kam (class 1)