महाभारतः mahābhārataḥ - book-15, chapter-12, verse-15

अथोपपत्त्या शकटं पद्मं वज्रं च भारत ।
उशना वेद यच्छास्त्रं तत्रैतद्विहितं विभो ॥१५॥

15. athopapattyā śakaṭaṁ padmaṁ vajraṁ ca bhārata ,
uśanā veda yacchāstraṁ tatraitadvihitaṁ vibho.

15. atha upapattyā śakaṭam padmam vajram ca bhārata
uśanā veda yat śāstram tatra etat vihitam vibho

15. bhārata vibho atha śakaṭam padmam vajram ca
upapattyā yat śāstram uśanā veda tatra etat vihitam

15. Now, O Bhārata, O mighty lord, the formations of Śakaṭa (cart), Padma (lotus), and Vajra (thunderbolt) are prescribed by means of arrangement in that very treatise which Uśanā knows.

Words meanings summery:

• अथ (atha) - now, next (now, then, moreover)

• उपपत्त्या (upapattyā) - by means of arrangement or formation (referring to military arrays) (by means of reason, by argument, by proof, by arrangement, by formation)

• शकटम् (śakaṭam) - the Śakaṭa (cart) military array (cart, wagon, a particular military array (cart array))

• पद्मम् (padmam) - the Padma (lotus) military array (lotus, a particular military array (lotus array))

• वज्रम् (vajram) - the Vajra (thunderbolt) military array (thunderbolt, diamond, a particular military array (thunderbolt array))

• च (ca) - and (and, also)

• भारत (bhārata) - O Dhṛtarāṣṭra (as a descendant of Bharata) (O descendant of Bharata)

• उशना (uśanā) - Uśanā, the renowned author of treatises on statecraft and military science (Uśanā (name of a Vedic seer, often identified with Śukra))

• वेद (veda) - knows (knows, understands)

• यत् (yat) - which (which, that (relative pronoun))

• शास्त्रम् (śāstram) - treatise (on military science) (scripture, treatise, instruction, science)

• तत्र (tatra) - in that (treatise) (there, in that place)

• एतत् (etat) - this (referring to the formations) (this, these)

• विहितम् (vihitam) - prescribed, ordained (prescribed, ordained, arranged, performed)

• विभो (vibho) - O mighty lord (addressing Dhṛtarāṣṭra) (O lord, O mighty one, O powerful one)

Words meanings and morphology

अथ (atha) - now, next (now, then, moreover)

(indeclinable)

उपपत्त्या (upapattyā) - by means of arrangement or formation (referring to military arrays) (by means of reason, by argument, by proof, by arrangement, by formation)

(noun)

Instrumental, feminine, singular of upapatti

upapatti - coming near, occurrence, proof, reason, argument, proper arrangement, suitability

from upa-pad + ktin

Prefix: upa

Root: pad (class 4)

शकटम् (śakaṭam) - the Śakaṭa (cart) military array (cart, wagon, a particular military array (cart array))

(noun)

Accusative, neuter, singular of śakaṭa

śakaṭa - a cart, wagon, a particular military array

पद्मम् (padmam) - the Padma (lotus) military array (lotus, a particular military array (lotus array))

(noun)

Accusative, neuter, singular of padma

padma - a lotus, a particular military array

वज्रम् (vajram) - the Vajra (thunderbolt) military array (thunderbolt, diamond, a particular military array (thunderbolt array))

(noun)

Accusative, neuter, singular of vajra

vajra - a thunderbolt, diamond, a particular military array

च (ca) - and (and, also)

(indeclinable)

भारत (bhārata) - O Dhṛtarāṣṭra (as a descendant of Bharata) (O descendant of Bharata)

(proper noun)

Vocative, masculine, singular of bhārata

bhārata - a descendant of Bharata, relating to Bharata, India

patronymic from Bharata

उशना (uśanā) - Uśanā, the renowned author of treatises on statecraft and military science (Uśanā (name of a Vedic seer, often identified with Śukra))

(proper noun)

Nominative, masculine, singular of uśanas

uśanas - Uśanā, a celebrated Vedic seer, also known as Śukra

वेद (veda) - knows (knows, understands)

(verb)

3rd person , singular, active, present (laṭ) of vid

Root: vid (class 2)

यत् (yat) - which (which, that (relative pronoun))

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, that (relative pronoun)

शास्त्रम् (śāstram) - treatise (on military science) (scripture, treatise, instruction, science)

(noun)

Accusative, neuter, singular of śāstra

śāstra - an order, command, teaching, instruction, rule, treatise, scripture, science

from root śās (to command, instruct)

Root: śās (class 2)

तत्र (tatra) - in that (treatise) (there, in that place)

(indeclinable)

from tad + tral

एतत् (etat) - this (referring to the formations) (this, these)

(pronoun)

Nominative, neuter, singular of etad

etad - this, these (demonstrative pronoun)

विहितम् (vihitam) - prescribed, ordained (prescribed, ordained, arranged, performed)

(adjective)

Nominative, neuter, singular of vihita

vihita - prescribed, ordained, arranged, performed, placed

Past Passive Participle

from vi-dhā + kta

Prefix: vi

Root: dhā (class 3)

विभो (vibho) - O mighty lord (addressing Dhṛtarāṣṭra) (O lord, O mighty one, O powerful one)

(adjective)

Vocative, masculine, singular of vibhu

vibhu - all-pervading, mighty, powerful, lord, ruler