महाभारतः mahābhārataḥ - book-5, chapter-192, verse-30

यावदेव स राजा वै नोपयाति पुरं मम ।
तावदेव महायक्ष प्रसादं कुरु गुह्यक ॥३०॥

30. yāvadeva sa rājā vai nopayāti puraṁ mama ,
tāvadeva mahāyakṣa prasādaṁ kuru guhyaka.

30. yāvat eva saḥ rājā vai na upayāti puram mama
tāvat eva mahāyakṣa prasādam kuru guhyaka

30. mahāyakṣa guhyaka yāvat eva saḥ rājā mama
puram na upayāti tāvat eva prasādam kuru

30. O great Yaksha, O Guhyaka, please grant your favor as long as that king does not come to my city.

Words meanings summery:

• यावत् (yāvat) - as long as, as much as

• एव (eva) - only, just, indeed

• सः (saḥ) - that, he

• राजा (rājā) - king

• वै (vai) - indeed, certainly

• न (na) - not, no

• उपयाति (upayāti) - approaches, comes near

• पुरम् (puram) - city, stronghold, dwelling

• मम (mama) - my, of me

• तावत् (tāvat) - so long, so much

• एव (eva) - only, just, indeed

• महायक्ष (mahāyakṣa) - O great Yaksha

• प्रसादम् (prasādam) - favor, grace, clemency

• कुरु (kuru) - do, make, perform, bestow

• गुह्यक (guhyaka) - O Guhyaka (a class of demi-gods, often synonymous with Yaksha)

Words meanings and morphology

यावत् (yāvat) - as long as, as much as

(indeclinable)

एव (eva) - only, just, indeed

(indeclinable)

सः (saḥ) - that, he

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

राजा (rājā) - king

(noun)

Nominative, masculine, singular of rājan

rājan - king, monarch

Root: rāj (class 1)

वै (vai) - indeed, certainly

(indeclinable)

न (na) - not, no

(indeclinable)

उपयाति (upayāti) - approaches, comes near

(verb)

3rd person , singular, active, present (laṭ) of upyā

Present tense, 3rd Person Singular, Active Voice

Prefix: upa

Root: i (class 2)

पुरम् (puram) - city, stronghold, dwelling

(noun)

Accusative, neuter, singular of pura

pura - city, town, stronghold, dwelling

मम (mama) - my, of me

(pronoun)

Genitive, singular of asmad

asmad - I, we

तावत् (tāvat) - so long, so much

(indeclinable)

एव (eva) - only, just, indeed

(indeclinable)

महायक्ष (mahāyakṣa) - O great Yaksha

(noun)

Vocative, masculine, singular of mahāyakṣa

mahāyakṣa - great Yaksha

Compound type : karmadhāraya (mahā+yakṣa)

• mahā – great, large, mighty
  adjective
• yakṣa – a class of nature-spirits, often benevolent but sometimes mischievous, associated with wealth and trees; a guardian of treasures
  noun (masculine)

प्रसादम् (prasādam) - favor, grace, clemency

(noun)

Accusative, masculine, singular of prasāda

prasāda - grace, favor, clemency, serenity

Prefix: pra

Root: sad (class 1)

कुरु (kuru) - do, make, perform, bestow

(verb)

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

Imperative mood, 2nd Person Singular, Active Voice

Root: kṛ (class 8)

गुह्यक (guhyaka) - O Guhyaka (a class of demi-gods, often synonymous with Yaksha)

(noun)

Vocative, masculine, singular of guhyaka

guhyaka - a class of demi-gods, a follower of Kubera, often identified with Yakshas, a hidden or secret being