महाभारतः mahābhārataḥ - book-6, chapter-112, verse-10

शैनेयोऽपि गुरोः पुत्रं सर्वमर्मसु भारत ।
अताडयदमेयात्मा नवभिः कङ्कपत्रिभिः ॥१०॥

10. śaineyo'pi guroḥ putraṁ sarvamarmasu bhārata ,
atāḍayadameyātmā navabhiḥ kaṅkapatribhiḥ.

10. śaineyaḥ api guroḥ putram sarvamarmasu bhārata
atāḍayat ameyātmā navabhiḥ kaṅkapatribhiḥ

10. bhārata ameyātmā śaineyaḥ api guroḥ putram
sarvamarmasu navabhiḥ kaṅkapatribhiḥ atāḍayat

10. O Bhārata, Satyaki (Śaineya), of immeasurable spirit (ātman), also struck the son of his teacher (guru) (Ashvatthama) with nine arrows feathered with heron feathers on all his vital spots.

Words meanings summery:

• शैनेयः (śaineyaḥ) - Satyaki, as the descendant of Shini (Satyaki)

• अपि (api) - also, even, indeed

• गुरोः (guroḥ) - of Drona, Ashvatthama's father and teacher (of the teacher, of the preceptor)

• पुत्रम् (putram) - Ashvatthama, the son of Drona (son)

• सर्वमर्मसु (sarvamarmasu) - on all vital spots

• भारत (bhārata) - Term of address, typically for Dhritarashtra or Arjuna in the Mahabharata (O descendant of Bharata)

• अताडयत् (atāḍayat) - struck, hit

• अमेयात्मा (ameyātmā) - Satyaki, characterized by his immeasurable spirit (ātman) (of immeasurable spirit, of unconquerable self)

• नवभिः (navabhiḥ) - with nine

• कङ्कपत्रिभिः (kaṅkapatribhiḥ) - with arrows feathered with heron feathers

Words meanings and morphology

शैनेयः (śaineyaḥ) - Satyaki, as the descendant of Shini (Satyaki)

(proper noun)

Nominative, masculine, singular of śaineya

śaineya - descendant of Śini, Satyaki

अपि (api) - also, even, indeed

(indeclinable)

गुरोः (guroḥ) - of Drona, Ashvatthama's father and teacher (of the teacher, of the preceptor)

(noun)

Genitive, masculine, singular of guru

guru - teacher, preceptor, spiritual guide; heavy, important

पुत्रम् (putram) - Ashvatthama, the son of Drona (son)

(noun)

Accusative, masculine, singular of putra

putra - son, child

सर्वमर्मसु (sarvamarmasu) - on all vital spots

(noun)

Locative, neuter, plural of sarvamarman

sarvamarman - all vital parts/spots

Compound type : tatpuruṣa (sarva+marman)

• sarva – all, every, whole
  pronoun
• marman – vital spot, vulnerable point
  noun (neuter)

भारत (bhārata) - Term of address, typically for Dhritarashtra or Arjuna in the Mahabharata (O descendant of Bharata)

(proper noun)

Vocative, masculine, singular of bhārata

bhārata - descendant of Bharata, related to Bharata; India

अताडयत् (atāḍayat) - struck, hit

(verb)

3rd person , singular, active, imperfect (luṅ) of taḍ

Imperfect

Imperfect 3rd singular active

Root: taḍ (class 10)

अमेयात्मा (ameyātmā) - Satyaki, characterized by his immeasurable spirit (ātman) (of immeasurable spirit, of unconquerable self)

(adjective)

Nominative, masculine, singular of ameyātman

ameyātman - of immeasurable self, of unconquerable spirit

Compound type : bahuvrīhi (ameya+ātman)

• ameya – immeasurable, incalculable
  adjective
  Gerundive
  Negation 'a' + root 'mā' (to measure) + suffix 'ya'
  Root: mā (class 2)
• ātman – self, soul, spirit, essence
  noun (masculine)
  Root: an (class 2)

Note: Modifies Śaineya

नवभिः (navabhiḥ) - with nine

(numeral)

कङ्कपत्रिभिः (kaṅkapatribhiḥ) - with arrows feathered with heron feathers

(noun)

Instrumental, masculine, plural of kaṅkapatrin

kaṅkapatrin - an arrow feathered with heron feathers

Compound type : tatpuruṣa (kaṅka+patrin)

• kaṅka – a heron, a kind of bird
  noun (masculine)
• patrin – winged, feathered; an arrow
  noun (masculine)
  Root: pat (class 1)