महाभारतः mahābhārataḥ - book-5, chapter-142, verse-28

प्राङ्मुखस्योर्ध्वबाहोः सा पर्यतिष्ठत पृष्ठतः ।
जप्यावसानं कार्यार्थं प्रतीक्षन्ती तपस्विनी ॥२८॥

28. prāṅmukhasyordhvabāhoḥ sā paryatiṣṭhata pṛṣṭhataḥ ,
japyāvasānaṁ kāryārthaṁ pratīkṣantī tapasvinī.

28. prāṅmukhasya ūrdhvabāhoḥ sā paryatiṣṭhata pṛṣṭhataḥ
japyāvasānam kāryārtham pratīkṣantī tapasvinī

28. sā tapasvinī prāṅmukhasya ūrdhvabāhoḥ (tasya) pṛṣṭhataḥ,
kāryārtham japyāvasānam pratīkṣantī,
paryatiṣṭhata.

28. She, the ascetic woman (Kuntī), stood behind him, who was facing east with arms raised, waiting for the completion of his sacred recitation (japa) for the purpose of her mission.

Words meanings summery:

• प्राङ्मुखस्य (prāṅmukhasya) - of him who was facing east (of him facing east, of the eastern-faced)

• ऊर्ध्वबाहोः (ūrdhvabāhoḥ) - of him with arms raised (of him with uplifted arms, of the one whose arms are raised)

• सा (sā) - she (Kuntī) (she, that (feminine))

• पर्यतिष्ठत (paryatiṣṭhata) - she stood (respectfully waiting) (she stood, stood around)

• पृष्ठतः (pṛṣṭhataḥ) - behind him (from behind, behind, at the back)

• जप्यावसानम् (japyāvasānam) - completion of his sacred recitation (japa) (completion of Japa (recitation))

• कार्यार्थम् (kāryārtham) - for the purpose of her mission/task (for the sake of the work, for the purpose)

• प्रतीक्षन्ती (pratīkṣantī) - waiting (for) (waiting, expecting)

• तपस्विनी (tapasvinī) - the ascetic woman (Kuntī, referring to her state of penance/devotion) (an ascetic woman, a female devotee, a virtuous woman)

Words meanings and morphology

प्राङ्मुखस्य (prāṅmukhasya) - of him who was facing east (of him facing east, of the eastern-faced)

(adjective)

Genitive, masculine, singular of prāṅmukha

prāṅmukha - facing east, eastern-faced

Compound type : bahuvrīhi (prāñc+mukha)

• prāñc – eastern, facing forward
  adjective (masculine)
• mukha – face, mouth, front
  noun (neuter)

Note: Qualifies Kārṇa (implied)

ऊर्ध्वबाहोः (ūrdhvabāhoḥ) - of him with arms raised (of him with uplifted arms, of the one whose arms are raised)

(adjective)

Genitive, masculine, singular of ūrdhvabāhu

ūrdhvabāhu - with uplifted arms

Compound type : bahuvrīhi (ūrdhva+bāhu)

• ūrdhva – upwards, elevated, raised
  adjective
• bāhu – arm
  noun (masculine)

Note: Qualifies Kārṇa (implied)

सा (sā) - she (Kuntī) (she, that (feminine))

(pronoun)

Nominative, feminine, singular of tad

tad - that, he, she, it

Note: Refers to Kuntī

पर्यतिष्ठत (paryatiṣṭhata) - she stood (respectfully waiting) (she stood, stood around)

(verb)

3rd person , singular, active, past imperfect (laṅ) of sthā

Prefix: pari

Root: sthā (class 1)

पृष्ठतः (pṛṣṭhataḥ) - behind him (from behind, behind, at the back)

(indeclinable)

Suffix tas added to pṛṣṭha

जप्यावसानम् (japyāvasānam) - completion of his sacred recitation (japa) (completion of Japa (recitation))

(noun)

Accusative, neuter, singular of japyāvasāna

japyāvasāna - completion of recitation, end of japa

Compound type : tatpuruṣa (japya+avasāna)

• japya – to be recited, murmured prayer, japa
  noun (neuter)
  Gerundive
  From root jap with suffix ṇyat
  Root: jap (class 1)
• avasāna – end, conclusion, cessation
  noun (neuter)
  From verb root so with prefix ava
  Prefix: ava
  Root: so (class 4)

Note: Object of 'pratīkṣantī'

कार्यार्थम् (kāryārtham) - for the purpose of her mission/task (for the sake of the work, for the purpose)

(indeclinable)

Compound ending in -artham, used adverbially

Compound type : tatpuruṣa (kārya+artha)

• kārya – to be done, act, work, duty, purpose
  noun (neuter)
  Gerundive
  From root kṛ with suffix ṇyat
  Root: kṛ (class 8)
• artha – purpose, meaning, object, wealth
  noun (masculine)

Note: Adverbial usage

प्रतीक्षन्ती (pratīkṣantī) - waiting (for) (waiting, expecting)

(adjective)

Nominative, feminine, singular of pratīkṣat

pratīkṣat - waiting, expecting

Present Active Participle

From verb root īkṣ with prefix prati, suffix śatṛ

Prefix: prati

Root: īkṣ (class 1)

Note: Qualifies 'sā' (Kuntī)

तपस्विनी (tapasvinī) - the ascetic woman (Kuntī, referring to her state of penance/devotion) (an ascetic woman, a female devotee, a virtuous woman)

(noun)

Nominative, feminine, singular of tapasvinī

tapasvin - an ascetic, a devotee, a virtuous person

From tapas with suffix vin, feminine form

Note: Appositive for 'sā' (Kuntī)