महाभारतः mahābhārataḥ - book-3, chapter-156, verse-21

न चाप्यतः परं शक्यं गन्तुं भरतसत्तमाः ।
विहारो ह्यत्र देवानाममानुषगतिस्तु सा ॥२१॥

21. na cāpyataḥ paraṁ śakyaṁ gantuṁ bharatasattamāḥ ,
vihāro hyatra devānāmamānuṣagatistu sā.

21. na ca api ataḥ param śakyam gantum bharatasattamāḥ
vihāraḥ hi atra devānām amānuṣagatiḥ tu sā

21. O best of Bharatas, it is also not possible to go beyond this point. For this indeed is the pleasure ground of the gods, and that passage is one accessible only by non-humans (superhuman access).

Words meanings summery:

• न (na) - not

• च (ca) - and

• अपि (api) - also, even

• अतः (ataḥ) - from this (place)

• परम् (param) - further, beyond

• शक्यम् (śakyam) - possible, able to be done

• गन्तुम् (gantum) - to go

• भरतसत्तमाः (bharatasattamāḥ) - O best of Bharatas

• विहारः (vihāraḥ) - pleasure ground, abode, sport

• हि (hi) - indeed, for

• अत्र (atra) - here, in this place

• देवानाम् (devānām) - of the gods

• अमानुषगतिः (amānuṣagatiḥ) - superhuman movement/access

• तु (tu) - but, indeed

• सा (sā) - that (feminine)

Words meanings and morphology

न (na) - not

(indeclinable)

च (ca) - and

(indeclinable)

अपि (api) - also, even

(indeclinable)

अतः (ataḥ) - from this (place)

(indeclinable)

from idam (this) + tasil (suffix)

परम् (param) - further, beyond

(adjective)

Nominative, neuter, singular of para

para - other, supreme, distant, ultimate, further

Note: Can also be adverbially 'further'.

शक्यम् (śakyam) - possible, able to be done

(adjective)

Nominative, neuter, singular of śakya

śakya - possible, able to be done, practicable

Gerundive

from root śak (to be able) + ya (gerundive suffix)

Root: śak (class 5)

Note: Functions predicatively with 'gantum'.

गन्तुम् (gantum) - to go

(indeclinable)

Infinitive

from root gam (to go) + tumun (infinitive suffix)

Root: gam (class 1)

Note: Infinitive verb form, functions as an indeclinable.

भरतसत्तमाः (bharatasattamāḥ) - O best of Bharatas

(proper noun)

Vocative, masculine, plural of bharatasattama

bharatasattama - best of Bharatas

Compound type : tatpuruṣa (bharata+sattama)

• bharata – a descendant of Bharata, name of an ancient king, name of a dynasty
  proper noun (masculine)
• sattama – best, excellent, most noble
  adjective (masculine)
  superlative of sat (good, existing)

विहारः (vihāraḥ) - pleasure ground, abode, sport

(noun)

Nominative, masculine, singular of vihāra

vihāra - a walk, ramble, sport, recreation, pleasure ground, monastery

from vi-hṛ (to roam, sport)

Prefix: vi

Root: hṛ (class 1)

हि (hi) - indeed, for

(indeclinable)

अत्र (atra) - here, in this place

(indeclinable)

from idam (this) + tral (suffix)

देवानाम् (devānām) - of the gods

(noun)

Genitive, masculine, plural of deva

deva - god, deity, divine being

Root: div (class 4)

अमानुषगतिः (amānuṣagatiḥ) - superhuman movement/access

(noun)

Nominative, feminine, singular of amānuṣagati

amānuṣagati - not humanly accessible, superhuman passage/movement

Compound type : tatpuruṣa (a+mānuṣa+gati)

• a – not, un-
  indeclinable
  negative prefix
• mānuṣa – human, belonging to man
  adjective (masculine)
  from manu (man) + aṣ (suffix)
• gati – going, motion, path, course, access
  noun (feminine)
  from root gam (to go)
  Root: gam (class 1)

तु (tu) - but, indeed

(indeclinable)

सा (sā) - that (feminine)

(pronoun)

Nominative, feminine, singular of tad

tad - that, she, it

Note: Refers to 'amānuṣagatiḥ'.