योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-81, verse-115

यत्र सोमकला ग्रस्ता क्षणं सूर्येण षोडशी ।
मुखाद्वितस्तिमात्रं स्यात्तत्र बद्धपदो भव ॥ ११५ ॥

yatra somakalā grastā kṣaṇaṃ sūryeṇa ṣoḍaśī ,
mukhādvitastimātraṃ syāttatra baddhapado bhava 115

115. yatra somakalā grastā kṣaṇam sūryeṇa ṣoḍaśī
mukhāt vitastimātram syāt tatra baddhapadaḥ bhava

115. yatra ṣoḍaśī somakalā sūryeṇa kṣaṇam grastā syāt,
tatra mukāt vitastimātram [sthānam asti,
tatra] baddhapadaḥ bhava

115. Where the sixteenth digit of the moon (soma-kalā) is momentarily absorbed by the sun, and where this point is precisely a span's distance from the mouth, there one should establish one's position firmly.

Words meanings summery:

• यत्र (yatra) - where, in which place, whenever

• सोमकला (somakalā) - the moon's digit (digit of the moon, lunar digit)

• ग्रस्ता (grastā) - absorbed or eclipsed (swallowed, seized, eclipsed, absorbed)

• क्षणम् (kṣaṇam) - for a moment (for a moment, instantly, a moment)

• सूर्येण (sūryeṇa) - by the sun

• षोडशी (ṣoḍaśī) - the sixteenth (digit of the moon) (the sixteenth)

• मुखात् (mukhāt) - from the mouth

• वितस्तिमात्रम् (vitastimātram) - precisely a span's distance (of the measure of a span, a span's distance)

• स्यात् (syāt) - would be, exists (potential mood) (may be, should be, would be, exists)

• तत्र (tatra) - there, in that place

• बद्धपदः (baddhapadaḥ) - one should establish one's focus/position firmly (having one's position fixed, firmly established, having bound feet/steps)

• भव (bhava) - establish (yourself), be (firmly established) (be, become, exist)

Words meanings and morphology

यत्र (yatra) - where, in which place, whenever

(indeclinable)

सोमकला (somakalā) - the moon's digit (digit of the moon, lunar digit)

(noun)

Nominative, feminine, singular of somakalā

somakalā - digit of the moon

Compound type : tatpuruṣa (soma+kalā)

• soma – Soma; moon; lunar principle
  noun (masculine)
• kalā – a part, a digit (especially of the moon), an art, a skill
  noun (feminine)

ग्रस्ता (grastā) - absorbed or eclipsed (swallowed, seized, eclipsed, absorbed)

(adjective)

Nominative, feminine, singular of grasta

grasta - swallowed, seized, grasped, eclipsed, overcome

past passive participle

Past passive participle of root 'gras' (to swallow).

Root: gras (class 1)

क्षणम् (kṣaṇam) - for a moment (for a moment, instantly, a moment)

(noun)

Accusative, masculine, singular of kṣaṇa

kṣaṇa - moment, instant, leisure

सूर्येण (sūryeṇa) - by the sun

(noun)

Instrumental, masculine, singular of sūrya

sūrya - the sun, sun god

षोडशी (ṣoḍaśī) - the sixteenth (digit of the moon) (the sixteenth)

(adjective)

Nominative, feminine, singular of ṣoḍaśin

ṣoḍaśin - sixteenth, consisting of sixteen

From 'ṣoḍaśa' (sixteen) with 'in' suffix.

मुखात् (mukhāt) - from the mouth

(noun)

Ablative, neuter, singular of mukha

mukha - mouth, face, opening, principal part

वितस्तिमात्रम् (vitastimātram) - precisely a span's distance (of the measure of a span, a span's distance)

(adjective)

Nominative, neuter, singular of vitastimātra

vitastimātra - of the measure of a span

From 'vitasti' (a span) + 'mātra' (measure).

Compound type : bahuvrīhi (vitasti+mātra)

• vitasti – a span (measure from thumb to little finger)
  noun (feminine)
• mātra – measure, only, merely, consisting of
  adjective (neuter)

स्यात् (syāt) - would be, exists (potential mood) (may be, should be, would be, exists)

(verb)

3rd person , singular, active, optative (liṅ) of as

optative mood, present tense

Optative 3rd person singular of root 'as'.

Root: as (class 2)

तत्र (tatra) - there, in that place

(indeclinable)

बद्धपदः (baddhapadaḥ) - one should establish one's focus/position firmly (having one's position fixed, firmly established, having bound feet/steps)

(adjective)

Nominative, masculine, singular of baddhapada

baddhapada - having fixed feet/steps, firmly established, having one's position fixed

Compound type : bahuvrīhi (baddha+pada)

• baddha – bound, tied, fixed, firm
  adjective (masculine)
  past passive participle
  Past passive participle of root 'bandh' (to bind).
  Root: bandh (class 9)
• pada – foot, step, position, word
  noun (neuter)

भव (bhava) - establish (yourself), be (firmly established) (be, become, exist)

(verb)

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

imperative mood, present tense

Imperative 2nd person singular of root 'bhū'.

Root: bhū (class 1)