महाभारतः mahābhārataḥ - book-7, chapter-117, verse-29

तावदीर्घेण कालेन ब्रह्मलोकपुरस्कृतौ ।
जिगीषन्तौ परं स्थानमन्योन्यमभिजघ्नतुः ॥२९॥

29. tāvadīrgheṇa kālena brahmalokapuraskṛtau ,
jigīṣantau paraṁ sthānamanyonyamabhijaghnatuḥ.

29. tāvat dīrgheṇa kālena brahmalokapuraskṛtau |
jigīṣantau param sthānam anyonyam abhijaghñatuḥ

29. dīrgheṇa tāvat kālena brahmalokapuraskṛtau
param sthānam jigīṣantau anyonyam abhijaghñatuḥ

29. For such a long time, those two, with the world of Brahmā (brahmaloka) as their reward, desiring to attain the supreme state, struck each other.

Words meanings summery:

• तावत् (tāvat) - for so long (so much, so long, to that extent)

• दीर्घेण (dīrgheṇa) - by a long (time) (by long, with long)

• कालेन (kālena) - for a (long) time (by time, with time)

• ब्रह्मलोकपुरस्कृतौ (brahmalokapuraskṛtau) - with the world of Brahmā (brahmaloka) as their reward (those who have Brahmaloka as their reward/goal)

• जिगीषन्तौ (jigīṣantau) - desiring to attain (desiring to conquer, wishing to win, aspiring to overcome)

• परम् (param) - supreme (supreme, highest, ultimate)

• स्थानम् (sthānam) - state (place, state, position, abode)

• अन्योन्यम् (anyonyam) - each other (each other, mutually)

• अभिजघ्ञतुः (abhijaghñatuḥ) - struck each other (they struck, they assailed, they attacked)

Words meanings and morphology

तावत् (tāvat) - for so long (so much, so long, to that extent)

(indeclinable)

दीर्घेण (dīrgheṇa) - by a long (time) (by long, with long)

(adjective)

Instrumental, masculine, singular of dīrgha

dīrgha - long, extended, tall

कालेन (kālena) - for a (long) time (by time, with time)

(noun)

Instrumental, masculine, singular of kāla

kāla - time, period, season

ब्रह्मलोकपुरस्कृतौ (brahmalokapuraskṛtau) - with the world of Brahmā (brahmaloka) as their reward (those who have Brahmaloka as their reward/goal)

(adjective)

Nominative, masculine, dual of brahmalokapuraskṛta

brahmalokapuraskṛta - having Brahmaloka as one's priority, esteemed by Brahmaloka, having Brahmaloka as one's goal/reward

Compound type : Bahuvrīhi (brahmaloka+puraskṛta)

• brahmaloka – the world of Brahmā, the highest heaven
  noun (masculine)
• puraskṛta – honored, placed in front, rewarded, favored, made a goal
  adjective
  Past Passive Participle
  Derived from root kṛ (to do, make) with prefix puras.
  Prefix: puras
  Root: kṛ (class 8)

जिगीषन्तौ (jigīṣantau) - desiring to attain (desiring to conquer, wishing to win, aspiring to overcome)

(adjective)

Nominative, masculine, dual of jigīṣat

jigīṣat - desiring to conquer/win

Present Desiderative Active Participle

Desiderative stem of root ji (to conquer, win) is jigīṣ-. The participle suffix is -at.

Root: ji (class 1)

परम् (param) - supreme (supreme, highest, ultimate)

(adjective)

Accusative, neuter, singular of para

para - supreme, highest, other, distant

स्थानम् (sthānam) - state (place, state, position, abode)

(noun)

Accusative, neuter, singular of sthāna

sthāna - place, standing, position, state, abode

Root: sthā (class 1)

अन्योन्यम् (anyonyam) - each other (each other, mutually)

(pronoun)

Accusative, neuter, singular of anyonya

anyonya - mutual, each other

अभिजघ्ञतुः (abhijaghñatuḥ) - struck each other (they struck, they assailed, they attacked)

(verb)

3rd person , dual, active, past perfect (liṭ) of han

Perfect tense, 3rd person dual active voice. From root han with prefix abhi.

Prefix: abhi

Root: han (class 2)