योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-67, verse-16

अन्यच्च चिरकालैकद्वैतसंकथयानया ।
शुद्धातिवाहिकैकात्मदेहता विस्मृतावयोः ओ ॥ १६ ॥

anyacca cirakālaikadvaitasaṃkathayānayā ,
śuddhātivāhikaikātmadehatā vismṛtāvayoḥ o 16

16. anyat ca cira-kāla-eka-dvaita-saṃkathayā anayā
śuddha-ātivāhika-eka-ātma-dehatā vismṛtā avayoḥ o

16. ca anayā cira-kāla-eka-dvaita-saṃkathayā anyat
avayoḥ śuddha-ātivāhika-eka-ātma-dehatā vismṛtā o

16. And furthermore, through this conversation on duality, prolonged for a very long time, the state of our being a single, pure, subtle body (which is the individual self, ātman) has been forgotten by us both.

Words meanings summery:

• अन्यत् (anyat) - another, other, further, different

• च (ca) - and, also, moreover

• चिर-काल-एक-द्वैत-संकथया (cira-kāla-eka-dvaita-saṁkathayā) - by this conversation on duality lasting for a very long time

• अनया (anayā) - by this, with this (feminine)

• शुद्ध-आतिवाहिक-एक-आत्म-देहता (śuddha-ātivāhika-eka-ātma-dehatā) - the state of being a single pure subtle self-body

• विस्मृता (vismṛtā) - forgotten, neglected

• अवयोः (avayoḥ) - of us two, by us two

• ओ (o) - Oh!

Words meanings and morphology

अन्यत् (anyat) - another, other, further, different

(adjective)

Nominative, neuter, singular of anya

anya - other, another, different, further

च (ca) - and, also, moreover

(indeclinable)

चिर-काल-एक-द्वैत-संकथया (cira-kāla-eka-dvaita-saṁkathayā) - by this conversation on duality lasting for a very long time

(noun)

Instrumental, feminine, singular of cira-kāla-eka-dvaita-saṃkathā

cira-kāla-eka-dvaita-saṁkathā - conversation on duality lasting for a very long time

Compound type : tatpuruṣa (cira-kāla-eka-dvaita+saṃkathā)

• cira – long (time), ancient
  adjective
• kāla – time, period
  noun (masculine)
• eka – one, single, alone, sole
  numeral
• dvaita – duality, dualism
  noun (neuter)
• saṃkathā – conversation, discourse, discussion
  noun (feminine)
  Prefix: sam
  Root: kath (class 10)

अनया (anayā) - by this, with this (feminine)

(pronoun)

Instrumental, feminine, singular of idam

idam - this

शुद्ध-आतिवाहिक-एक-आत्म-देहता (śuddha-ātivāhika-eka-ātma-dehatā) - the state of being a single pure subtle self-body

(noun)

Nominative, feminine, singular of śuddha-ātivāhika-eka-ātma-dehatā

śuddha-ātivāhika-eka-ātma-dehatā - the state of being a single pure subtle self-body

Compound type : tatpuruṣa (śuddha+ātivāhika+eka-ātma+dehatā)

• śuddha – pure, clean, clear, stainless
  adjective
  Root: śudh (class 4)
• ātivāhika – subtle, conveying, transporting
  adjective
  Prefix: ati
  Root: vah (class 1)
• eka-ātman – single self, unified self
  noun (masculine)
• dehatā – the state of being a body, corporeality
  noun (feminine)

विस्मृता (vismṛtā) - forgotten, neglected

(adjective)

Nominative, feminine, singular of vismṛta

vismṛta - forgotten, neglected, unmindful

Past Passive Participle

formed from root smṛ with prefix vi-

Prefix: vi

Root: smṛ (class 1)

अवयोः (avayoḥ) - of us two, by us two

(pronoun)

Genitive, dual of asmad

asmad - we

ओ (o) - Oh!

(indeclinable)