योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-86, verse-15

दिनैः कतिपयैरेव वृद्धिमभ्याजगाम सः ।
अप्रमेयाङ्गसौन्दर्यः शुक्लपक्षे शशी यथा ॥ १५ ॥

dinaiḥ katipayaireva vṛddhimabhyājagāma saḥ ,
aprameyāṅgasaundaryaḥ śuklapakṣe śaśī yathā 15

15. dinaiḥ katipayaiḥ eva vṛddhim abhi-ājagāma saḥ
aprameyāṅgasaundaryaḥ śuklapakṣe śaśī yathā

15. saḥ katipayaiḥ dinaiḥ eva vṛddhim abhi-ājagāma
aprameyāṅgasaundaryaḥ yathā śaśī śuklapakṣe

15. Within just a few days, he attained growth, possessing immeasurable bodily beauty, just like the moon (śaśī) during its bright fortnight.

Words meanings summery:

• दिनैः (dinaiḥ) - by days, in days

• कतिपयैः (katipayaiḥ) - by a few, by some

• एव (eva) - just, only, indeed, certainly

• वृद्धिम् (vṛddhim) - growth, increase, prosperity

• अभि-आजगाम (abhi-ājagāma) - approached, attained, reached

• सः (saḥ) - he, that (masc. nom. sing.)

• अप्रमेयाङ्गसौन्दर्यः (aprameyāṅgasaundaryaḥ) - with immeasurable bodily beauty

• शुक्लपक्षे (śuklapakṣe) - in the bright fortnight

• शशी (śaśī) - moon

• यथा (yathā) - just as, as, like

Words meanings and morphology

दिनैः (dinaiḥ) - by days, in days

(noun)

Instrumental, neuter, plural of dina

dina - day

कतिपयैः (katipayaiḥ) - by a few, by some

(adjective)

Instrumental, neuter, plural of katipaya

katipaya - some, a few

एव (eva) - just, only, indeed, certainly

(indeclinable)

वृद्धिम् (vṛddhim) - growth, increase, prosperity

(noun)

Accusative, feminine, singular of vṛddhi

vṛddhi - growth, increase, prosperity, success

अभि-आजगाम (abhi-ājagāma) - approached, attained, reached

(verb)

3rd person , singular, active, perfect (Lit) of gam

Perfect, Parasmeipada

3rd person singular, perfect, active voice of root gam-1 with prefixes abhi and ā

Prefixes: abhi+ā

Root: gam (class 1)

सः (saḥ) - he, that (masc. nom. sing.)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

अप्रमेयाङ्गसौन्दर्यः (aprameyāṅgasaundaryaḥ) - with immeasurable bodily beauty

(adjective)

Nominative, masculine, singular of aprameyāṅgasaundarya

aprameyāṅgasaundarya - having immeasurable bodily beauty

Compound type : bahuvrihi (aprameya+aṅga+saundarya)

• aprameya – immeasurable, incomprehensible, unprovable
  adjective (masculine)
  Gerundive
  Negative gerundive of pra-mā-2
  Prefixes: a+pra
  Root: mā (class 2)
• aṅga – limb, body, part
  noun (neuter)
• saundarya – beauty, handsomeness, charm
  noun (neuter)

शुक्लपक्षे (śuklapakṣe) - in the bright fortnight

(noun)

Locative, masculine, singular of śuklapakṣa

śuklapakṣa - bright fortnight (of the moon)

Compound type : karmadhāraya (śukla+pakṣa)

• śukla – bright, white, clear
  adjective (masculine)
• pakṣa – fortnight, side, wing, party
  noun (masculine)

शशी (śaśī) - moon

(noun)

Nominative, masculine, singular of śaśin

śaśin - moon (lit. 'having a hare')

यथा (yathā) - just as, as, like

(indeclinable)