योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-34, verse-12

आपादशृङ्खलाप्रोतभ्रमत्स्थूलोपलद्वयम् ।
भ्रामयंश्चित्रदण्डाख्यं चक्रमूर्ध्वभुजो जवात् ॥ १२ ॥

āpādaśṛṅkhalāprotabhramatsthūlopaladvayam ,
bhrāmayaṃścitradaṇḍākhyaṃ cakramūrdhvabhujo javāt 12

12. āpādaśṛṅkhalāprotabhramatsthūlopaladvayam
bhrāmayan citradaṇḍākhyam cakram ūrdhvabhujaḥ javāt

12. ūrdhvabhujaḥ javāt āpādaśṛṅkhalāprotabhramatsthūlopaladvayam
citradaṇḍākhyam cakram bhrāmayan

12. With an upraised arm, he swiftly whirled the discus, known as Citradaṇḍa, which was equipped with a pair of massive stones, strung on chains reaching down to its base, and constantly revolving.

Words meanings summery:

• आपादशृङ्खलाप्रोतभ्रमत्स्थूलोपलद्वयम् (āpādaśṛṅkhalāprotabhramatsthūlopaladvayam) - (describing the discus) equipped with a pair of massive stones, strung on chains reaching down to its base, and constantly revolving (having two large, revolving stones strung on chains down to the feet)

• भ्रामयन् (bhrāmayan) - whirling (the discus) (whirling, causing to spin)

• चित्रदण्डाख्यम् (citradaṇḍākhyam) - named Citradaṇḍa (named Citradaṇḍa, called Citradaṇḍa)

• चक्रम् (cakram) - discus (weapon) (discus, wheel, circle)

• ऊर्ध्वभुजः (ūrdhvabhujaḥ) - with an upraised arm (having an upraised arm, with an arm raised)

• जवात् (javāt) - swiftly (swiftly, quickly, from speed)

Words meanings and morphology

आपादशृङ्खलाप्रोतभ्रमत्स्थूलोपलद्वयम् (āpādaśṛṅkhalāprotabhramatsthūlopaladvayam) - (describing the discus) equipped with a pair of massive stones, strung on chains reaching down to its base, and constantly revolving (having two large, revolving stones strung on chains down to the feet)

(adjective)

Accusative, neuter, singular of āpādaśṛṅkhalāprotabhramatsthūlopaladvaya

āpādaśṛṅkhalāprotabhramatsthūlopaladvaya - having two large stones, strung on chains down to the feet, and revolving

Bahuvrihi compound. Describes 'cakram'.

Compound type : bahuvrihi (āpāda+śṛṅkhalā+prota+bhramat+sthūla+upala+dvaya)

• āpāda – reaching the feet, down to the feet
  adjective
  Avyayibhāva compound (ā + pāda)
  Prefix: ā
• śṛṅkhalā – chain, fetter
  noun (feminine)
• prota – strung, pierced, inserted
  adjective
  Past Passive Participle
  From pra-√ū (to weave, string), or pra-√ve (to pierce). Here, it seems to imply strung or fastened.
  Prefix: pra
  Root: ū/ve
• bhramat – spinning, revolving, wandering
  adjective
  Present Active Participle
  From root bhram (to wander, spin)
  Root: bhram (class 1)
• sthūla – large, massive, bulky, gross
  adjective
• upala – stone, rock, gem
  noun (masculine)
• dvaya – pair, duo, two
  noun (neuter)
  From dvi (two)

Note: Qualifies cakram.

भ्रामयन् (bhrāmayan) - whirling (the discus) (whirling, causing to spin)

(adjective)

Nominative, masculine, singular of bhrāmayat

bhrāmayat - whirling, causing to spin

Present Active Participle (causative)

From causative root bhram-aya (to cause to wander/spin)

Root: bhram (class 1)

Note: Refers to the implicit subject of the action.

चित्रदण्डाख्यम् (citradaṇḍākhyam) - named Citradaṇḍa (named Citradaṇḍa, called Citradaṇḍa)

(adjective)

Accusative, neuter, singular of citradaṇḍākhya

citradaṇḍākhya - named Citradaṇḍa

Karmadhāraya compound: Citradaṇḍa (proper noun) + ākhya (named).

Compound type : karmadhāraya (citradaṇḍa+ākhya)

• citradaṇḍa – variegated staff, wonder staff (proper noun/compound noun)
  proper noun (masculine)
• ākhya – named, called, relating to
  adjective
  From root khyā (to tell, relate), with prefix ā
  Prefix: ā
  Root: khyā (class 2)

Note: Qualifies cakram.

चक्रम् (cakram) - discus (weapon) (discus, wheel, circle)

(noun)

Accusative, neuter, singular of cakra

cakra - wheel, discus, circle, army

Note: Object of the action of bhrāmayan.

ऊर्ध्वभुजः (ūrdhvabhujaḥ) - with an upraised arm (having an upraised arm, with an arm raised)

(adjective)

Nominative, masculine, singular of ūrdhvabhuja

ūrdhvabhuja - having an upraised arm

Bahuvrihi compound: ūrdhva (upraised) + bhuja (arm).

Compound type : bahuvrihi (ūrdhva+bhuja)

• ūrdhva – up, above, raised, erect
  adjective
• bhuja – arm, hand, curve
  noun (masculine)

Note: Qualifies the implicit subject.

जवात् (javāt) - swiftly (swiftly, quickly, from speed)

(noun)

Ablative, masculine, singular of java

java - speed, swiftness, velocity

Root: ju (class 1)

Note: Used adverbially meaning "with speed".