योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-70, verse-25

तेजस्तनुप्रवाहाभा प्राणतन्तुमयात्मिका ।
मूलसंवेदनाकारा चन्द्रार्कांशुकसुन्दरी ॥ २५ ॥

tejastanupravāhābhā prāṇatantumayātmikā ,
mūlasaṃvedanākārā candrārkāṃśukasundarī 25

25. tejastanuprāvābhā prāṇatantumayātmikā
mūlasaṃvedanākārā candrārkāṃśukasundarī

25. tejastanuprāvābhā prāṇatantumayātmikā
mūlasaṃvedanākārā candrārkāṃśukasundarī

25. She possessed the splendor of a flowing subtle energy, her essence was composed of threads of life-force (prāṇa), her form was primordial perception, and she was beautiful with the rays of the moon and sun.

Words meanings summery:

• तेजस्तनुप्रावाभा (tejastanuprāvābhā) - having the splendor of a stream of subtle energy/light

• प्राणतन्तुमयात्मिका (prāṇatantumayātmikā) - whose essence is made of life-force threads, of the nature of threads of life-force

• मूलसंवेदनाकारा (mūlasaṁvedanākārā) - whose form is primordial perception/consciousness

• चन्द्रार्कांशुकसुन्दरी (candrārkāṁśukasundarī) - beautiful with the rays of the moon and sun

Words meanings and morphology

तेजस्तनुप्रावाभा (tejastanuprāvābhā) - having the splendor of a stream of subtle energy/light

(adjective)

Nominative, feminine, singular of tejastanuprāvābhā

tejastanuprāvābhā - having the splendor of a stream of subtle energy/light

Compound type : bahuvrihi (tejas+tanu+pravāha+ābhā)

• tejas – radiance, splendor, subtle fire/energy, vital power
  noun (neuter)
• tanu – body, subtle, delicate
  noun (feminine)
• pravāha – flow, current, stream
  noun (masculine)
  Prefix: pra
  Root: vah (class 1)
• ābhā – splendor, light, radiance, resemblance
  noun (feminine)

प्राणतन्तुमयात्मिका (prāṇatantumayātmikā) - whose essence is made of life-force threads, of the nature of threads of life-force

(adjective)

Nominative, feminine, singular of prāṇatantumayātmika

prāṇatantumayātmika - whose essence is made of life-force threads, of the nature of threads of life-force

Compound type : bahuvrihi (prāṇa+tantu+maya+ātmika)

• prāṇa – life-force, vital breath, life
  noun (masculine)
  Prefix: pra
  Root: an (class 2)
• tantu – thread, fiber, string
  noun (masculine)
• maya – made of, consisting of, full of
  adjective (masculine)
  Suffix -maya
• ātmika – relating to the self or soul, having the nature of
  adjective (masculine)
  Suffix -ika added to ātman

मूलसंवेदनाकारा (mūlasaṁvedanākārā) - whose form is primordial perception/consciousness

(adjective)

Nominative, feminine, singular of mūlasaṃvedanākāra

mūlasaṁvedanākāra - whose form is primordial perception/consciousness

Compound type : bahuvrihi (mūla+saṃvedanā+ākāra)

• mūla – root, origin, foundation, primordial
  noun (neuter)
• saṃvedanā – perception, sensation, consciousness, knowledge
  noun (feminine)
  Derived from root vid with sam
  Prefix: sam
  Root: vid (class 6)
• ākāra – form, shape, appearance
  noun (masculine)

चन्द्रार्कांशुकसुन्दरी (candrārkāṁśukasundarī) - beautiful with the rays of the moon and sun

(adjective)

Nominative, feminine, singular of candrārkāṃśukasundara

candrārkāṁśukasundara - beautiful with the rays of the moon and sun

Compound type : bahuvrihi (candra+arka+aṃśuka+sundara)

• candra – moon
  noun (masculine)
• arka – sun
  noun (masculine)
• aṃśuka – ray (of light), fine cloth, garment
  noun (masculine)
• sundara – beautiful, lovely, handsome
  adjective (masculine)