योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-66, verse-21

अगस्त्येन पुलस्त्येन भृगुणाऽङ्गिरसापि च ।
एत एव तथान्ये च एवंरूपक्रियास्पदम् ॥ २१ ॥

agastyena pulastyena bhṛguṇā'ṅgirasāpi ca ,
eta eva tathānye ca evaṃrūpakriyāspadam 21

21. agastyena pulastyena bhṛguṇā aṅgirasā api ca
ete eva tathā anye ca evaṃ-rūpa-kriyā-āspadam

21. agastyena pulastyena bhṛguṇā aṅgirasā api ca.
evaṃ-rūpa-kriyā-āspadam ete eva tathā anye ca.

21. By Agastya, by Pulastya, by Bhṛgu, and also by Aṅgiras (these manifestations occur). These very ones, and similarly others, are the foundation for such forms and actions.

Words meanings summery:

• अगस्त्येन (agastyena) - by Agastya

• पुलस्त्येन (pulastyena) - by Pulastya

• भृगुणा (bhṛguṇā) - by Bhṛgu

• अङ्गिरसा (aṅgirasā) - by Aṅgiras

• अपि (api) - also, even, too

• च (ca) - and, also

• एते (ete) - these

• एव (eva) - exactly, only, very, indeed

• तथा (tathā) - thus, so, similarly, and

• अन्ये (anye) - others

• च (ca) - and, also

• एवं-रूप-क्रिया-आस्पदम् (evaṁ-rūpa-kriyā-āspadam) - the foundation/basis for such forms and actions

Words meanings and morphology

अगस्त्येन (agastyena) - by Agastya

(proper noun)

Instrumental, masculine, singular of agastya

agastya - Agastya (a revered Vedic sage, one of the Saptarishis)

पुलस्त्येन (pulastyena) - by Pulastya

(proper noun)

Instrumental, masculine, singular of pulastya

pulastya - Pulastya (one of the Prajāpatis and a mind-born son of Brahmā)

भृगुणा (bhṛguṇā) - by Bhṛgu

(proper noun)

Instrumental, masculine, singular of bhṛgu

bhṛgu - Bhṛgu (one of the Prajāpatis and a revered sage)

अङ्गिरसा (aṅgirasā) - by Aṅgiras

(proper noun)

Instrumental, masculine, singular of aṅgiras

aṅgiras - Aṅgiras (a Vedic sage, one of the Prajāpatis, and progenitor of the Aṅgirasa clan)

अपि (api) - also, even, too

(indeclinable)

च (ca) - and, also

(indeclinable)

एते (ete) - these

(pronoun)

Nominative, masculine, plural of etad

etad - this, these

एव (eva) - exactly, only, very, indeed

(indeclinable)

तथा (tathā) - thus, so, similarly, and

(indeclinable)

अन्ये (anye) - others

(pronoun)

Nominative, masculine, plural of anya

anya - other, another, different

च (ca) - and, also

(indeclinable)

एवं-रूप-क्रिया-आस्पदम् (evaṁ-rūpa-kriyā-āspadam) - the foundation/basis for such forms and actions

(noun)

Nominative, neuter, singular of evaṃ-rūpa-kriyā-āspada

evaṁ-rūpa-kriyā-āspada - the abode or basis of such forms and actions

Compound type : tatpurusha (evaṃ+rūpa+kriyā+āspada)

• evaṃ – thus, so, such
  indeclinable
• rūpa – form, shape, nature, characteristic
  noun (neuter)
• kriyā – action, activity, performance, ritual
  noun (feminine)
  Root: kṛ (class 8)
• āspada – seat, abode, place, object, basis, foundation
  noun (neuter)