योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-8, verse-36

सुन्दोपसुन्दयोश्चैव पुत्रौ वैवस्वतोपमौ ।
यज्ञविघ्नकरौ ब्रूहि न ते दास्यामि पुत्रकम् ॥ ३६ ॥

sundopasundayoścaiva putrau vaivasvatopamau ,
yajñavighnakarau brūhi na te dāsyāmi putrakam 36

36. sundopasundayoḥ ca eva putrau vaivasvatopamau |
yajñavighnakarau brūhi na te dāsyāmi putrakam ||

36. sundopasundayoḥ ca eva vaivasvatopamau
yajñavighnakarau putrau brūhi na te putrakam dāsyāmi

36. You speak of the two sons of Sunda and Upasunda, who are formidable like Yama (Vaivasvata) and cause obstacles to the Vedic ritual (yajña). (However,) I will not give my child to you.

Words meanings summery:

• सुन्दोपसुन्दयोह् (sundopasundayoh) - of Sunda and Upasunda

• च (ca) - and

• एव (eva) - indeed, certainly

• पुत्रौ (putrau) - two sons

• वैवस्वतोपमौ (vaivasvatopamau) - resembling Vaivasvata (Yama), like Yama

• यज्ञविघ्नकरौ (yajñavighnakarau) - causing obstacles to the Vedic ritual (yajña)

• ब्रूहि (brūhi) - You speak (of them) (tell, speak)

• न (na) - not

• ते (te) - to you

• दास्यामि (dāsyāmi) - I will give

• पुत्रकम् (putrakam) - (my) child, little son

Words meanings and morphology

सुन्दोपसुन्दयोह् (sundopasundayoh) - of Sunda and Upasunda

(proper noun)

Genitive, masculine, dual of sundopasunda

sundopasunda - Sunda and Upasunda (two demons)

Compound type : dvandva (sunda+upasunda)

• sunda – name of a demon
  proper noun (masculine)
• upasunda – name of a demon
  proper noun (masculine)

च (ca) - and

(indeclinable)

एव (eva) - indeed, certainly

(indeclinable)

पुत्रौ (putrau) - two sons

(noun)

Nominative, masculine, dual of putra

putra - son, child

वैवस्वतोपमौ (vaivasvatopamau) - resembling Vaivasvata (Yama), like Yama

(adjective)

Nominative, masculine, dual of vaivasvatopama

vaivasvatopama - resembling Yama (son of Vivasvat)

Compound type : ṣaṣṭhī-tatpuruṣa (vaivasvata+upama)

• vaivasvata – Yama (son of Vivasvat)
  proper noun (masculine)
• upama – likeness, comparison, similar
  adjective (masculine/feminine/neuter)

यज्ञविघ्नकरौ (yajñavighnakarau) - causing obstacles to the Vedic ritual (yajña)

(adjective)

Nominative, masculine, dual of yajñavighnakara

yajñavighnakara - causing impediments to sacrifice

Compound type : tatpuruṣa (yajña+vighna+kara)

• yajña – Vedic ritual
  noun (masculine)
  Root: yaj (class 1)
• vighna – obstacle, impediment
  noun (neuter)
• kara – doer, maker, causing
  adjective (masculine/feminine/neuter)
  Root: kṛ (class 8)

ब्रूहि (brūhi) - You speak (of them) (tell, speak)

(verb)

2nd person , singular, active, imperative (loṭ) of brū

Root: brū (class 2)

न (na) - not

(indeclinable)

ते (te) - to you

(pronoun)

Dative, singular of tvad

tvad - you

Note: Enclitic form of the dative singular of 'tvad'.

दास्यामि (dāsyāmi) - I will give

(verb)

1st person , singular, active, future (lṛṭ) of dā

Root: dā (class 1)

पुत्रकम् (putrakam) - (my) child, little son

(noun)

Accusative, masculine, singular of putraka

putraka - a little son, a dear child

Diminutive of putra (son)