योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-19, verse-18

नवं नवं प्रीतिकरं न शिशुः प्रत्यहं यदि ।
प्राप्नोति तदसौ याति विषवैषम्यमूर्च्छनाम् ॥ १८ ॥

navaṃ navaṃ prītikaraṃ na śiśuḥ pratyahaṃ yadi ,
prāpnoti tadasau yāti viṣavaiṣamyamūrcchanām 18

18. navaṃ navaṃ prītikarṃ na śiśuḥ pratyahaṃ yadi
prāpnoti tat asau yāti viṣavaiṣamyamūrcchanām

18. yadi śiśuḥ pratyahaṃ navaṃ navaṃ prītikarṃ na prāpnoti,
tat asau viṣavaiṣamyamūrcchanām yāti

18. If a child (śiśu) does not daily obtain something new and delightful, then he falls into a state of intense distress, like one overcome by the imbalance of poison.

Words meanings summery:

• नवं (navaṁ) - new, fresh

• नवं (navaṁ) - new, fresh

• प्रीतिकर्ं (prītikarṁ) - pleasing, delightful

• न (na) - not

• शिशुः (śiśuḥ) - child

• प्रत्यहं (pratyahaṁ) - daily, everyday

• यदि (yadi) - if

• प्राप्नोति (prāpnoti) - obtains, gets, reaches

• तत् (tat) - then, that

• असौ (asau) - he, that one

• याति (yāti) - goes, attains

• विषवैषम्यमूर्च्छनाम् (viṣavaiṣamyamūrcchanām) - unconsciousness from the imbalance of poison, extreme distress as if poisoned

Words meanings and morphology

नवं (navaṁ) - new, fresh

(adjective)

Accusative, neuter, singular of nava

nava - new, fresh, young, recent

नवं (navaṁ) - new, fresh

(adjective)

Accusative, neuter, singular of nava

nava - new, fresh, young, recent

Note: Repetition implies 'something new each time' or 'ever new'.

प्रीतिकर्ं (prītikarṁ) - pleasing, delightful

(adjective)

Accusative, neuter, singular of prītikara

prītikara - causing joy, delighting, pleasing

Compound type : tatpurusha (prīti+kara)

• prīti – joy, pleasure, love, delight
  noun (feminine)
  From root prī (to please, to love)
  Root: prī (class 9)
• kara – making, causing, doing
  suffix/agent noun (masculine)
  Agent noun
  From root kṛ (to do, to make)
  Root: kṛ (class 8)

न (na) - not

(indeclinable)

शिशुः (śiśuḥ) - child

(noun)

Nominative, masculine, singular of śiśu

śiśu - child, infant, young animal

प्रत्यहं (pratyahaṁ) - daily, everyday

(indeclinable)

Compound type : avyayibhāva (prati+ahan)

• prati – towards, against, every
  indeclinable
  Prefix or preposition
• ahan – day
  noun (neuter)

Note: Adverbial usage.

यदि (yadi) - if

(indeclinable)

प्राप्नोति (prāpnoti) - obtains, gets, reaches

(verb)

3rd person , singular, active, present (lat) of prāp

Prefix: pra

Root: āp (class 5)

तत् (tat) - then, that

(indeclinable)

असौ (asau) - he, that one

(pronoun)

Nominative, masculine, singular of adas

adas - that, that one (more distant)

याति (yāti) - goes, attains

(verb)

3rd person , singular, active, present (lat) of yā

Root: yā (class 2)

विषवैषम्यमूर्च्छनाम् (viṣavaiṣamyamūrcchanām) - unconsciousness from the imbalance of poison, extreme distress as if poisoned

(noun)

Accusative, feminine, singular of viṣavaiṣamyamūrcchanā

viṣavaiṣamyamūrcchanā - fainting/unconsciousness due to the imbalance/unevenness of poison

Compound type : tatpurusha (viṣa+vaiṣamya+mūrcchanā)

• viṣa – poison, venom
  noun (neuter)
• vaiṣamya – unevenness, inequality, difficulty, distress, imbalance
  noun (neuter)
  Derived from viṣama (uneven, difficult)
• mūrcchanā – fainting, swoon, unconsciousness, stupefaction
  noun (feminine)
  From root mūrcch (to faint, to become senseless)
  Root: mūrcch (class 1)