योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-45, verse-16

उन्मत्तचेष्टिताकारा हसत्यपि पुरोगताः ।
तरङ्गभङ्गुराधाराः संसारसरितो गतीः ॥ १६ ॥

unmattaceṣṭitākārā hasatyapi purogatāḥ ,
taraṅgabhaṅgurādhārāḥ saṃsārasarito gatīḥ 16

16. unmattaceṣṭitākārāḥ hasati api puragatāḥ
taraṅgabhaṅgurādhārāḥ saṃsārasaritaḥ gatīḥ

16. saḥ saṃsārasaritaḥ gatīḥ unmattaceṣṭitākārāḥ
puragatāḥ taraṅgabhaṅgurādhārāḥ api hasati

16. He even laughs at the aspects of the river of transmigration (saṃsāra) that appear before him, whose forms resemble the actions of a madman and whose foundations are as fragile as waves.

Words meanings summery:

• उन्मत्तचेष्टिताकाराः (unmattaceṣṭitākārāḥ) - appearing like the erratic movements of a deranged person (having the form/appearance of a madman's actions)

• हसति (hasati) - he laughs

• अपि (api) - even, also, too

• पुरगताः (puragatāḥ) - appearing before him, manifesting (gone forward, come forth, present, manifest)

• तरङ्गभङ्गुराधाराः (taraṅgabhaṅgurādhārāḥ) - whose foundations are as ephemeral and unstable as waves (whose supports are fragile like waves; having wave-like fragile bases)

• संसारसरितः (saṁsārasaritaḥ) - of the river of transmigration; of the river of (saṃsāra)

• गतीः (gatīḥ) - aspects or states of existence within (saṃsāra) (courses, paths, states, conditions, movements)

Words meanings and morphology

उन्मत्तचेष्टिताकाराः (unmattaceṣṭitākārāḥ) - appearing like the erratic movements of a deranged person (having the form/appearance of a madman's actions)

(adjective)

Accusative, feminine, plural of unmattaceṣṭitākāra

unmattaceṣṭitākāra - having the form/appearance of a madman's actions

Compound type : Bahuvrihi (unmattaceṣṭita+ākāra)

• unmattaceṣṭita – action/endeavor of a madman; mad action
  noun (neuter)
  Tatpurusha compound of unmatta and ceṣṭita. ceṣṭita is P.P.P. from ceṣṭ (to move).
• ākāra – form, shape, appearance, external sign
  noun (masculine)
  Prefix: ā
  Root: kṛ (class 8)

Note: Agrees with gatīḥ.

हसति (hasati) - he laughs

(verb)

3rd person , singular, active, present (laṭ) of has

Present active indicative

Root has, 3rd person singular, present tense.

Root: has (class 1)

अपि (api) - even, also, too

(indeclinable)

पुरगताः (puragatāḥ) - appearing before him, manifesting (gone forward, come forth, present, manifest)

(adjective)

Accusative, feminine, plural of puragata

puragata - gone before, gone forward, advanced, presented

Past Passive Participle

puras (before) + gata (gone from gam). Used adjectivally.

Compound type : Tatpurusha (puras+gata)

• puras – before, in front, eastward
  indeclinable
• gata – gone, moved, past, arrived at
  adjective (feminine)
  Past Passive Participle
  From root gam (to go).
  Root: gam (class 1)

Note: Agrees with gatīḥ.

तरङ्गभङ्गुराधाराः (taraṅgabhaṅgurādhārāḥ) - whose foundations are as ephemeral and unstable as waves (whose supports are fragile like waves; having wave-like fragile bases)

(adjective)

Accusative, feminine, plural of taraṅgabhaṅgurādhāra

taraṅgabhaṅgurādhāra - having bases/supports fragile like waves

Compound type : Bahuvrihi (taraṅga+bhaṅgura+ādhāra)

• taraṅga – wave, billow, surge
  noun (masculine)
  Root: tṛ (class 3)
• bhaṅgura – fragile, brittle, perishable, transient
  adjective (masculine)
  From root bhañj (to break).
  Root: bhañj (class 7)
• ādhāra – support, basis, foundation, receptacle
  noun (masculine)
  From ā-dhṛ (to hold, support).
  Prefix: ā
  Root: dhṛ (class 1)

Note: Agrees with gatīḥ.

संसारसरितः (saṁsārasaritaḥ) - of the river of transmigration; of the river of (saṃsāra)

(noun)

Genitive, feminine, singular of saṃsārasarit

saṁsārasarit - the river of transmigration; the river of (saṃsāra)

Compound type : Tatpurusha (saṃsāra+sarit)

• saṃsāra – transmigration, cycle of rebirth, worldly existence
  noun (masculine)
  From sam-sṛ (to move together, flow around).
  Prefix: sam
  Root: sṛ (class 1)
• sarit – river, stream
  noun (feminine)
  From root sṛ (to flow).
  Root: sṛ (class 1)

Note: Qualifies gatīḥ as 'the paths/states of the river of saṃsāra'.

गतीः (gatīḥ) - aspects or states of existence within (saṃsāra) (courses, paths, states, conditions, movements)

(noun)

Accusative, feminine, plural of gati

gati - going, moving, course, path, state, condition, destination

From root gam (to go) + suffix ti.

Root: gam (class 1)

Note: Direct object of hasati.