योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-21, verse-35

चतुर्युगार्धमपरं नीरन्ध्रां वनपादपैः ।
अदृष्टेतरनिर्माणां संस्मरामि धरामिमाम् ॥ ३५ ॥

caturyugārdhamaparaṃ nīrandhrāṃ vanapādapaiḥ ,
adṛṣṭetaranirmāṇāṃ saṃsmarāmi dharāmimām 35

35. caturyugārdham aparam nīrandhrām vanapādapaiḥ
adṛṣṭetaranirmāṇām saṃsmarāmi dharām imām

35. saṃsmarāmi imām dharām aparam caturyugārdham
vanapādapaiḥ nīrandhrām adṛṣṭetaranirmāṇām

35. I remember this earth, which, for another half-cycle of four yugas, was densely covered with forest trees and showed no other creations.

Words meanings summery:

• चतुर्युगार्धम् (caturyugārdham) - half of a four-yuga period, two yugas

• अपरम् (aparam) - another, other, subsequent

• नीरन्ध्राम् (nīrandhrām) - dense, impenetrable, without gaps

• वनपादपैः (vanapādapaiḥ) - by forest trees

• अदृष्टेतरनिर्माणाम् (adṛṣṭetaranirmāṇām) - whose other creations were unseen, on which no other creation was visible

• संस्मरामि (saṁsmarāmi) - I remember, I recollect, I recall

• धराम् (dharām) - earth, ground, land

• इमाम् (imām) - this, here

Words meanings and morphology

चतुर्युगार्धम् (caturyugārdham) - half of a four-yuga period, two yugas

(noun)

Accusative, neuter, singular of caturyugārdha

caturyugārdha - half of a four-yuga cycle (i.e., two yugas)

Compound of 'caturyuga' (four yugas) and 'ardha' (half).

Compound type : tatpuruṣa (caturyuga+ardha)

• caturyuga – a period of four yugas
  noun (neuter)
• ardha – half, part
  noun (neuter)

Note: Adverbial accusative, indicating duration.

अपरम् (aparam) - another, other, subsequent

(adjective)

Accusative, neuter, singular of apara

apara - other, another, subsequent, western

Note: Qualifies 'caturyugārdham'.

नीरन्ध्राम् (nīrandhrām) - dense, impenetrable, without gaps

(adjective)

Accusative, feminine, singular of nīrandhra

nīrandhra - without gaps, dense, impenetrable, compact

Compound of 'nis' (without) and 'randhra' (gap, hole).

Compound type : bahuvrīhi (nis+randhra)

• nis – out, without, negative prefix
  indeclinable
• randhra – gap, hole, opening, defect
  noun (neuter)

Note: Qualifies 'dharām'.

वनपादपैः (vanapādapaiḥ) - by forest trees

(noun)

Instrumental, masculine, plural of vanapādapa

vanapādapa - a tree of the forest, forest tree

Compound of 'vana' (forest) and 'pādapa' (tree).

Compound type : tatpuruṣa (vana+pādapa)

• vana – forest, wood, grove
  noun (neuter)
• pādapa – tree (lit. 'foot-drinker')
  noun (masculine)
  Compound of 'pāda' (foot) and 'pa' (drinker), agent noun from root √pā.
  Root: √pā (class 1)

Note: Agent of 'nīrandhrām' (dense by them).

अदृष्टेतरनिर्माणाम् (adṛṣṭetaranirmāṇām) - whose other creations were unseen, on which no other creation was visible

(adjective)

Accusative, feminine, singular of adṛṣṭetaranirmāṇa

adṛṣṭetaranirmāṇa - having other creations unseen, where no other construction/formation is visible

Bahuvrīhi compound.

Compound type : bahuvrīhi (adṛṣṭa+itara+nirmāṇa)

• adṛṣṭa – unseen, invisible, unperceived
  participle (masculine)
  Past Passive Participle
  Negated form of 'dṛṣṭa' (seen), from root √dṛś.
  Prefix: a
  Root: √dṛś (class 1)
• itara – other, different, another
  adjective (masculine)
• nirmāṇa – creation, formation, construction, making
  noun (neuter)
  From root √mā with prefix nir.
  Prefix: nir
  Root: √mā (class 2)

Note: Qualifies 'dharām'.

संस्मरामि (saṁsmarāmi) - I remember, I recollect, I recall

(verb)

1st person , singular, active, present (laṭ) of saṃsmar

Present Active Indicative

From root √smṛ with prefix sam.

Prefix: sam

Root: √smṛ (class 1)

Note: Main verb of the sentence.

धराम् (dharām) - earth, ground, land

(noun)

Accusative, feminine, singular of dharā

dharā - earth, ground, land

Note: Object of 'saṃsmarāmi'.

इमाम् (imām) - this, here

(pronoun)

Accusative, feminine, singular of idam

idam - this, here, these

Note: Qualifies 'dharām'.