महाभारतः mahābhārataḥ - book-7, chapter-154, verse-4

दशभिर्दशभिर्बाणैर्धृष्टद्युम्नशिखण्डिनौ ।
दृढैः पूर्णायतोत्सृष्टैर्बिभेद नतपर्वभिः ॥४॥

4. daśabhirdaśabhirbāṇairdhṛṣṭadyumnaśikhaṇḍinau ,
dṛḍhaiḥ pūrṇāyatotsṛṣṭairbibheda nataparvabhiḥ.

4. daśabhiḥ daśabhiḥ bāṇaiḥ dhṛṣṭadyumna-śikhaṇḍinau
dṛḍhaiḥ pūrṇa-āyata-utsṛṣṭaiḥ bibheda nata-parvabhiḥ

4. (karṇaḥ) dṛḍhaiḥ pūrṇa-āyata-utsṛṣṭaiḥ nata-parvabhiḥ daśabhiḥ daśabhiḥ bāṇaiḥ dhṛṣṭadyumna-śikhaṇḍinau bibheda.

4. With ten arrows each—firm, shot with full draw, and having straight shafts—he pierced Dhṛṣṭadyumna and Śikhaṇḍī.

Words meanings summery:

• दशभिः (daśabhiḥ) - by ten, with ten

• दशभिः (daśabhiḥ) - Used in repetition with the previous 'daśabhiḥ' to mean 'ten each'. (by ten, with ten)

• बाणैः (bāṇaiḥ) - by arrows, with arrows

• धृष्टद्युम्न-शिखण्डिनौ (dhṛṣṭadyumna-śikhaṇḍinau) - Dhrishtadyumna and Shikhandi

• दृढैः (dṛḍhaiḥ) - Referring to the arrows being firm/strong. (by firm, by strong)

• पूर्ण-आयत-उत्सृष्टैः (pūrṇa-āyata-utsṛṣṭaiḥ) - Describing the arrows as being shot with maximum force from a fully drawn bow. (released with full draw, shot with full stretch)

• बिभेद (bibheda) - he pierced, he divided, he broke

• नत-पर्वभिः (nata-parvabhiḥ) - Referring to arrows that are well-constructed, with straight nodes, indicating quality and accuracy. (with straight/well-made shafts, with unbent joints)

Words meanings and morphology

दशभिः (daśabhiḥ) - by ten, with ten

(numeral)

दशभिः (daśabhiḥ) - Used in repetition with the previous 'daśabhiḥ' to mean 'ten each'. (by ten, with ten)

(numeral)

बाणैः (bāṇaiḥ) - by arrows, with arrows

(noun)

Instrumental, masculine, plural of bāṇa

bāṇa - arrow

धृष्टद्युम्न-शिखण्डिनौ (dhṛṣṭadyumna-śikhaṇḍinau) - Dhrishtadyumna and Shikhandi

(proper noun)

Accusative, masculine, dual of dhṛṣṭadyumna-śikhaṇḍin

dhṛṣṭadyumna-śikhaṇḍin - Dhrishtadyumna and Shikhandi (a dual compound of proper nouns)

Compound type : dvandva (dhṛṣṭadyumna+śikhaṇḍin)

• dhṛṣṭadyumna – Dhrishtadyumna (name of a Pandava ally, brother of Draupadi)
  proper noun (masculine)
• śikhaṇḍin – Shikhandi (name of a Pandava ally)
  proper noun (masculine)

दृढैः (dṛḍhaiḥ) - Referring to the arrows being firm/strong. (by firm, by strong)

(adjective)

Instrumental, masculine, plural of dṛḍha

dṛḍha - firm, strong, hard, solid, fixed, steady

पूर्ण-आयत-उत्सृष्टैः (pūrṇa-āyata-utsṛṣṭaiḥ) - Describing the arrows as being shot with maximum force from a fully drawn bow. (released with full draw, shot with full stretch)

(adjective)

Instrumental, masculine, plural of pūrṇa-āyata-utsṛṣṭa

pūrṇa-āyata-utsṛṣṭa - released with full draw/stretch (of a bowstring)

Compound type : tatpurusha (pūrṇa+āyata+utsṛṣṭa)

• pūrṇa – full, complete, filled
  adjective (masculine)
  past passive participle
  From root 'pṛ' (to fill).
  Root: pṛ (class 3)
• āyata – drawn, stretched, extended
  adjective (masculine)
  past passive participle
  From root 'yam' (to restrain, stretch) with prefix 'ā'.
  Prefix: ā
  Root: yam (class 1)
• utsṛṣṭa – released, discharged, shot, thrown
  adjective (masculine)
  past passive participle
  From root 'sṛj' (to release, create) with prefix 'ut'.
  Prefix: ut
  Root: sṛj (class 6)

बिभेद (bibheda) - he pierced, he divided, he broke

(verb)

3rd person , singular, active, perfect (lit) of bibheda

perfect tense

Root 'bhid' (to cleave, break, pierce), perfect tense, 3rd person singular active.

Root: bhid (class 7)

नत-पर्वभिः (nata-parvabhiḥ) - Referring to arrows that are well-constructed, with straight nodes, indicating quality and accuracy. (with straight/well-made shafts, with unbent joints)

(adjective)

Instrumental, masculine, plural of nata-parvan

nata-parvan - having bent/straight joints or nodes (for arrows, meaning well-made or straight shafts)

Compound type : bahuvrihi (nata+parvan)

• nata – bent, bowed, humbled; straight (in context of arrow nodes)
  adjective (masculine)
  past passive participle
  From root 'nam' (to bend, bow). In context of arrows, often implying 'not bent' or 'straight'.
  Root: nam (class 1)
• parvan – knot, joint, section, limb; node (of a reed or arrow)
  noun (neuter)