योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-71, verse-21

अतः कियन्तं नो जाने कालमावलितापदम् ।
मयापच्छ्वभ्रगर्तेषु लुठितव्यं हतेहया ॥ २१ ॥

ataḥ kiyantaṃ no jāne kālamāvalitāpadam ,
mayāpacchvabhragarteṣu luṭhitavyaṃ hatehayā 21

21. ataḥ kiyantam na jāne kālam āvalita-āpadam mayā
āpat-śvabhra-garteṣu luṭhitavyam hata-īhayā

21. ataḥ āvalita-āpadam kiyantam kālam na jāne.
hata-īhayā mayā āpat-śvabhra-garteṣu luṭhitavyam.

21. Therefore, I do not know for how long I must endure this period fraught with misfortunes. With my aspirations thwarted, I am destined to be tossed about in the abysses of calamity (āpad).

Words meanings summery:

• अतः (ataḥ) - therefore, hence, from this

• कियन्तम् (kiyantam) - how much, how long, how great

• न (na) - not, no

• जाने (jāne) - I know

• कालम् (kālam) - time, period

• आवलित-आपदम् (āvalita-āpadam) - beset with calamities, afflicted by misfortune

• मया (mayā) - by me

• आपत्-श्वभ्र-गर्तेषु (āpat-śvabhra-garteṣu) - in the pits/chasms of calamity

• लुठितव्यम् (luṭhitavyam) - to be rolled, to be wallowed, must be tossed about

• हत-ईहया (hata-īhayā) - with thwarted/destroyed desire/effort/aspiration

Words meanings and morphology

अतः (ataḥ) - therefore, hence, from this

(indeclinable)

From idam (this) + suffix -tas

कियन्तम् (kiyantam) - how much, how long, how great

(adjective)

Accusative, masculine, singular of kiyat

kiyat - how much, how many, how great, how long

न (na) - not, no

(indeclinable)

जाने (jāne) - I know

(verb)

1st person , singular, middle, present (laṭ) of jñā

Present Tense

1st person singular, ātmanepada

Root: jñā (class 9)

कालम् (kālam) - time, period

(noun)

Accusative, masculine, singular of kāla

kāla - time, period, season, appropriate time

आवलित-आपदम् (āvalita-āpadam) - beset with calamities, afflicted by misfortune

(adjective)

Accusative, masculine, singular of āvalita-āpad

āvalita-āpad - afflicted by calamities, surrounded by misfortunes

Compound type : Bahuvrīhi (āvalita+āpad)

• āvalita – surrounded, embraced, enveloped, beset
  adjective
  Past Passive Participle
  From ā + val (to move, cover) + kta
  Prefix: ā
  Root: val (class 1)
• āpad – calamity, misfortune, distress, danger
  noun (feminine)
  From ā + pad (to go) + kvip
  Prefix: ā
  Root: pad (class 4)

Note: Qualifies 'kālam'.

मया (mayā) - by me

(pronoun)

Instrumental, singular of asmad

asmad - I, me

Note: Agent in passive construction ('luṭhitavyam').

आपत्-श्वभ्र-गर्तेषु (āpat-śvabhra-garteṣu) - in the pits/chasms of calamity

(noun)

Locative, masculine, plural of āpat-śvabhra-garta

āpat-śvabhra-garta - pits/chasms of calamity

Compound type : Tatpuruṣa (āpad+śvabhra+garta)

• āpad – calamity, misfortune, distress
  noun (feminine)
  From ā + pad (to go) + kvip
  Prefix: ā
  Root: pad (class 4)
• śvabhra – chasm, abyss, pit, hole
  noun (neuter)
• garta – pit, hole, cavity
  noun (masculine)
  From root gṛ (to swallow) + ta
  Root: gṛ (class 6)

लुठितव्यम् (luṭhitavyam) - to be rolled, to be wallowed, must be tossed about

(adjective)

Nominative, neuter, singular of luṭhitavya

luṭhitavya - to be rolled, to be wallowed, to be tossed about, fit to be rolled

Gerundive (kṛtya)

From root luṭh (to roll, wallow) + tavya (kṛtya suffix)

Root: luṭh (class 1)

Note: Expresses obligation or suitability for the action.

हत-ईहया (hata-īhayā) - with thwarted/destroyed desire/effort/aspiration

(adjective)

Instrumental, feminine, singular of hata-īhā

hata-īhā - one whose efforts/desires are destroyed/thwarted

Compound type : Bahuvrīhi (hata+īhā)

• hata – struck, killed, destroyed, thwarted, spoiled
  adjective
  Past Passive Participle
  From root han (to strike, kill) + kta
  Root: han (class 2)
• īhā – desire, wish, effort, exertion, endeavor
  noun (feminine)
  From root īh (to strive) + a (suffix)
  Root: īh (class 1)

Note: Adverbial usage, describing the state of the agent.