महाभारतः mahābhārataḥ - book-1, chapter-158, verse-50

वज्रं क्षत्रस्य वाजिनो अवध्या वाजिनः स्मृताः ।
रथाङ्गं वडवा सूते सूताश्चाश्वेषु ये मताः ॥५०॥

50. vajraṁ kṣatrasya vājino avadhyā vājinaḥ smṛtāḥ ,
rathāṅgaṁ vaḍavā sūte sūtāścāśveṣu ye matāḥ.

50. vajram kṣatrasya vājinaḥ avadhyāḥ vājinaḥ smṛtāḥ
ratha-aṅgam vaḍavā sūte sūtāḥ ca aśveṣu ye matāḥ

50. The thunderbolt represents the might of the warrior (kṣatra) class. Swift horses are considered invincible. A mare produces horses that are like chariot-components, and those horses are regarded as charioteers among their kind due to their skill.

Words meanings summery:

• वज्रम् (vajram) - thunderbolt, diamond, weapon

• क्षत्रस्य (kṣatrasya) - of the warrior (kṣatra) class (of the warrior class, of dominion, of power)

• वाजिनः (vājinaḥ) - swift horses (swift ones, mighty ones, horses)

• अवध्याः (avadhyāḥ) - not to be killed, inviolable, invincible

• वाजिनः (vājinaḥ) - swift horses (swift ones, mighty ones, horses)

• स्मृताः (smṛtāḥ) - considered (remembered, considered, known as)

• रथ-अङ्गम् (ratha-aṅgam) - a horse that is an integral part of a chariot's function, or of excellent quality for chariots (chariot-part, wheel)

• वडवा (vaḍavā) - mare

• सूते (sūte) - gives birth, produces

• सूताः (sūtāḥ) - horses considered as highly skilled, like charioteers, among their kind (charioteers, bards; born)

• च (ca) - and, also

• अश्वेषु (aśveṣu) - among horses, in horses

• ये (ye) - who, which

• मताः (matāḥ) - regarded as (considered, thought, believed)

Words meanings and morphology

वज्रम् (vajram) - thunderbolt, diamond, weapon

(noun)

Nominative, neuter, singular of vajra

vajra - thunderbolt (weapon of Indra), diamond, adamantine

क्षत्रस्य (kṣatrasya) - of the warrior (kṣatra) class (of the warrior class, of dominion, of power)

(noun)

Genitive, neuter, singular of kṣatra

kṣatra - dominion, power, might; the warrior class

वाजिनः (vājinaḥ) - swift horses (swift ones, mighty ones, horses)

(adjective)

Nominative, masculine, plural of vājin

vājin - swift, spirited, powerful; a horse

Note: Used here as a noun, referring to horses.

अवध्याः (avadhyāḥ) - not to be killed, inviolable, invincible

(adjective)

Nominative, masculine, plural of avadhyā

avadhyā - not to be killed, inviolable, invincible

Gerundive

Derived from root han (to kill) with negation 'a' and gerundive suffix 'ya'

Root: han (class 2)

वाजिनः (vājinaḥ) - swift horses (swift ones, mighty ones, horses)

(adjective)

Nominative, masculine, plural of vājin

vājin - swift, spirited, powerful; a horse

Note: Used here as a noun, referring to horses.

स्मृताः (smṛtāḥ) - considered (remembered, considered, known as)

(adjective)

Nominative, masculine, plural of smṛta

smṛta - remembered, recollected, thought of, considered

Past Passive Participle

Derived from root smṛ (to remember)

Root: smṛ (class 1)

रथ-अङ्गम् (ratha-aṅgam) - a horse that is an integral part of a chariot's function, or of excellent quality for chariots (chariot-part, wheel)

(noun)

Nominative, neuter, singular of ratha-aṅga

ratha-aṅga - chariot-part, wheel; a component of a chariot

Compound type : tatpuruṣa (ratha+aṅga)

• ratha – chariot, car, vehicle
  noun (masculine)
• aṅga – limb, body, part, component, division
  noun (neuter)

Note: Used metaphorically to denote horses of high quality, essential for chariots.

वडवा (vaḍavā) - mare

(noun)

Nominative, feminine, singular of vaḍavā

vaḍavā - a mare

सूते (sūte) - gives birth, produces

(verb)

3rd person , singular, middle, present (lat) of sū

Root: sū (class 2)

सूताः (sūtāḥ) - horses considered as highly skilled, like charioteers, among their kind (charioteers, bards; born)

(noun)

Nominative, masculine, plural of sūta

sūta - charioteer; a bard, minstrel; one born (of mixed caste)

Note: Here, used metaphorically to describe horses of exceptional skill or importance.

च (ca) - and, also

(indeclinable)

अश्वेषु (aśveṣu) - among horses, in horses

(noun)

Locative, masculine, plural of aśva

aśva - horse

ये (ye) - who, which

(pronoun)

Nominative, masculine, plural of yat

yat - who, which, what

मताः (matāḥ) - regarded as (considered, thought, believed)

(adjective)

Nominative, masculine, plural of mata

mata - thought, considered, believed, intended

Past Passive Participle

Derived from root man (to think, believe)

Root: man (class 4)