महाभारतः mahābhārataḥ - book-3, chapter-163, verse-14

ततोऽहं वचनात्तस्य गिरिमारुह्य शैशिरम् ।
तपोऽतप्यं महाराज मासं मूलफलाशनः ॥१४॥

14. tato'haṁ vacanāttasya girimāruhya śaiśiram ,
tapo'tapyaṁ mahārāja māsaṁ mūlaphalāśanaḥ.

14. tataḥ aham vacanāt tasya girim āruhya śaiśiram
tapaḥ atapyam mahārāja māsam mūlaphalāśanaḥ

14. Then, according to his instruction, O great king, I ascended a snowy mountain and performed austerity (tapas) for a month, subsisting on roots and fruits.

Words meanings summery:

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

• अहम् (aham) - I

• वचनात् (vacanāt) - from the word, by the instruction

• तस्य (tasya) - his, of him

• गिरिम् (girim) - mountain

• आरुह्य (āruhya) - having ascended, having climbed

• शैशिरम् (śaiśiram) - snowy, wintry

• तपः (tapaḥ) - austerity, penance (tapas)

• अतप्यम् (atapyam) - I performed (austerity)

• महाराज (mahārāja) - O great king

• मासम् (māsam) - for a month

• मूलफलाशनः (mūlaphalāśanaḥ) - eating roots and fruits, one who eats roots and fruits

Words meanings and morphology

ततः (tataḥ) - then, thereafter, from that

(indeclinable)

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, me, my

वचनात् (vacanāt) - from the word, by the instruction

(noun)

Ablative, neuter, singular of vacana

vacana - word, speech, instruction

तस्य (tasya) - his, of him

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

गिरिम् (girim) - mountain

(noun)

Accusative, masculine, singular of giri

giri - mountain, hill

आरुह्य (āruhya) - having ascended, having climbed

(indeclinable)

Absolutive (Gerund)

formed from root ruh (to ascend) with prefix ā and suffix ya

Prefix: ā

Root: ruh (class 1)

शैशिरम् (śaiśiram) - snowy, wintry

(adjective)

Accusative, masculine, singular of śaiśira

śaiśira - snowy, wintry, relating to winter

derived from śiśira (winter)

Note: Agrees with 'girim'

तपः (tapaḥ) - austerity, penance (tapas)

(noun)

Accusative, neuter, singular of tapas

tapas - austerity, penance, heat, religious devotion

अतप्यम् (atapyam) - I performed (austerity)

(verb)

1st person , singular, active, past imperfect (laṅ) of tap

Root: tap (class 1)

महाराज (mahārāja) - O great king

(noun)

Vocative, masculine, singular of mahārāja

mahārāja - great king, emperor

Compound type : karmadhāraya (mahā+rāja)

• mahā – great, large, mighty
  adjective
• rāja – king, ruler
  noun (masculine)

मासम् (māsam) - for a month

(noun)

Accusative, masculine, singular of māsa

māsa - month

Note: Indicates duration of time

मूलफलाशनः (mūlaphalāśanaḥ) - eating roots and fruits, one who eats roots and fruits

(adjective)

Nominative, masculine, singular of mūlaphalāśana

mūlaphalāśana - one who eats roots and fruits

Compound type : bahuvrīhi (mūla+phala+aśana)

• mūla – root, origin, foundation
  noun (neuter)
• phala – fruit, result, reward
  noun (neuter)
• aśana – eating, food
  noun (neuter)
  action noun from root aś (to eat)
  Root: aś (class 9)

Note: Agrees with implied subject 'aham'