महाभारतः mahābhārataḥ - book-12, chapter-311, verse-7

यत्नान्नियच्छतस्तस्य मुनेरग्निचिकीर्षया ।
अरण्यामेव सहसा तस्य शुक्रमवापतत् ॥७॥

7. yatnānniyacchatastasya muneragnicikīrṣayā ,
araṇyāmeva sahasā tasya śukramavāpatat.

7. yatnāt niyacchataḥ tasya muneḥ agnicikīrṣayā
| araṇyām eva sahasā tasya śukram avāpatat

7. tasya muneḥ yatnāt niyacchataḥ agnicikīrṣayā,
sahasā tasya śukram araṇyām eva avāpatat.

7. As that sage was, with great effort, restraining himself, and with the intention of kindling the sacred fire, his semen suddenly fell onto the friction-sticks (araṇi) themselves.

Words meanings summery:

• यत्नात् (yatnāt) - from effort, with effort

• नियच्छतः (niyacchataḥ) - of him restraining, of him holding back

• तस्य (tasya) - of that, his

• मुनेः (muneḥ) - of the sage, of the ascetic

• अग्निचिकीर्षया (agnicikīrṣayā) - with the desire to make fire, with the intention of kindling fire

• अरण्याम् (araṇyām) - on the friction-stick (araṇi) used for kindling fire (on the friction-stick, in the forest (less likely here))

• एव (eva) - indeed, only, even

• सहसा (sahasā) - suddenly, unexpectedly, forcibly

• तस्य (tasya) - of that, his

• शुक्रम् (śukram) - semen, bright, pure

• अवापतत् (avāpatat) - fell down, flew down, obtained

Words meanings and morphology

यत्नात् (yatnāt) - from effort, with effort

(noun)

Ablative, masculine, singular of yatna

yatna - effort, exertion, endeavor, care

नियच्छतः (niyacchataḥ) - of him restraining, of him holding back

(adjective)

Genitive, masculine, singular of niyacchat

niyacchat - restraining, holding back, controlling

Present Active Participle

derived from root yam (to curb) with prefix ni

Prefix: ni

Root: yam (class 1)

तस्य (tasya) - of that, his

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

मुनेः (muneḥ) - of the sage, of the ascetic

(noun)

Genitive, masculine, singular of muni

muni - sage, ascetic, contemplative person

अग्निचिकीर्षया (agnicikīrṣayā) - with the desire to make fire, with the intention of kindling fire

(noun)

Instrumental, feminine, singular of agnicikīrṣā

agnicikīrṣā - desire to make fire, desire to perform a fire ritual

Compound type : tatpuruṣa (agni+cikīrṣā)

• agni – fire, sacrificial fire, Agni (god of fire)
  noun (masculine)
• cikīrṣā – desire to do, intention to perform
  noun (feminine)
  desiderative formation from root kṛ (to do)
  Root: kṛ (class 8)

अरण्याम् (araṇyām) - on the friction-stick (araṇi) used for kindling fire (on the friction-stick, in the forest (less likely here))

(noun)

Locative, feminine, singular of araṇi

araṇi - friction-stick (used for kindling fire), tinder-wood

एव (eva) - indeed, only, even

(indeclinable)

सहसा (sahasā) - suddenly, unexpectedly, forcibly

(indeclinable)

instrumental form of sahas (force) used as an adverb

तस्य (tasya) - of that, his

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

शुक्रम् (śukram) - semen, bright, pure

(noun)

Nominative, neuter, singular of śukra

śukra - semen, pure, bright, white, brilliant

Note: Can also be accusative singular neuter.

अवापतत् (avāpatat) - fell down, flew down, obtained

(verb)

3rd person , singular, active, imperfect (luṅ) of pat

Imperfect

derived from root pat (to fall) with prefix ava

Prefix: ava

Root: pat (class 1)