महाभारतः mahābhārataḥ - book-1, chapter-123, verse-7

ततो द्रोणोऽर्जुनं भूयो रथेषु च गजेषु च ।
अश्वेषु भूमावपि च रणशिक्षामशिक्षयत् ॥७॥

7. tato droṇo'rjunaṁ bhūyo ratheṣu ca gajeṣu ca ,
aśveṣu bhūmāvapi ca raṇaśikṣāmaśikṣayat.

7. tataḥ droṇaḥ arjunam bhūyaḥ ratheṣu ca gajeṣu
ca aśveṣu bhūmau api ca raṇaśikṣām aśikṣayat

7. Then Drona again taught Arjuna battle skills for chariots, elephants, horses, and also on the ground.

Words meanings summery:

• ततः (tataḥ) - then (then, thereafter, from there)

• द्रोणः (droṇaḥ) - Drona (Drona (a proper name))

• अर्जुनम् (arjunam) - Arjuna (Arjuna (a proper name))

• भूयः (bhūyaḥ) - again (again, further, moreover)

• रथेषु (ratheṣu) - in chariots

• च (ca) - and (and, also)

• गजेषु (gajeṣu) - in elephants

• च (ca) - and (and, also)

• अश्वेषु (aśveṣu) - in horses

• भूमौ (bhūmau) - on the ground (on the earth, on the ground)

• अपि (api) - also (also, even, too)

• च (ca) - and (and, also)

• रणशिक्षाम् (raṇaśikṣām) - battle skills (battle training, warfare instruction)

• अशिक्षयत् (aśikṣayat) - taught (taught, instructed)

Words meanings and morphology

ततः (tataḥ) - then (then, thereafter, from there)

(indeclinable)

द्रोणः (droṇaḥ) - Drona (Drona (a proper name))

(proper noun)

Nominative, masculine, singular of droṇa

droṇa - Drona (name of the teacher of the Pāṇḍavas and Kauravas)

अर्जुनम् (arjunam) - Arjuna (Arjuna (a proper name))

(proper noun)

Accusative, masculine, singular of arjuna

arjuna - Arjuna (one of the Pāṇḍava brothers); white, clear

भूयः (bhūyaḥ) - again (again, further, moreover)

(indeclinable)

रथेषु (ratheṣu) - in chariots

(noun)

Locative, masculine, plural of ratha

ratha - chariot, car

च (ca) - and (and, also)

(indeclinable)

गजेषु (gajeṣu) - in elephants

(noun)

Locative, masculine, plural of gaja

gaja - elephant

च (ca) - and (and, also)

(indeclinable)

अश्वेषु (aśveṣu) - in horses

(noun)

Locative, masculine, plural of aśva

aśva - horse

भूमौ (bhūmau) - on the ground (on the earth, on the ground)

(noun)

Locative, feminine, singular of bhūmi

bhūmi - earth, ground, land, soil

अपि (api) - also (also, even, too)

(indeclinable)

च (ca) - and (and, also)

(indeclinable)

रणशिक्षाम् (raṇaśikṣām) - battle skills (battle training, warfare instruction)

(noun)

Accusative, feminine, singular of raṇaśikṣā

raṇaśikṣā - battle training, instruction in warfare

Compound type : tatpuruṣa (raṇa+śikṣā)

• raṇa – battle, combat, war
  noun (masculine)
• śikṣā – learning, study, instruction, training, skill
  noun (feminine)
  Root: śikṣ (class 1)

अशिक्षयत् (aśikṣayat) - taught (taught, instructed)

(verb)

3rd person , singular, active, imperfect (laṅ) of śikṣ

Root: śikṣ (class 1)