महाभारतः mahābhārataḥ - book-12, chapter-200, verse-37

द्वापरे मैथुनो धर्मः प्रजानामभवन्नृप ।
तथा कलियुगे राजन्द्वंद्वमापेदिरे जनाः ॥३७॥

37. dvāpare maithuno dharmaḥ prajānāmabhavannṛpa ,
tathā kaliyuge rājandvaṁdvamāpedire janāḥ.

37. dvāpare maithunaḥ dharmaḥ prajānām abhavat nṛpa
tathā kaliyuge rājan dvandvam āpedire janāḥ

37. nṛpa dvāpare prajānām maithunaḥ dharmaḥ abhavat
rājan tathā kaliyuge janāḥ dvandvam āpedire

37. O king, in the Dvāpara Yuga, the practice (dharma) of sexual union became the norm for progeny. Similarly, O king, in the Kali Yuga, people experienced duality (dvandva).

Words meanings summery:

• द्वापरे (dvāpare) - in the Dvāpara Yuga

• मैथुनः (maithunaḥ) - relating to sexual union (relating to sexual union, procreative)

• धर्मः (dharmaḥ) - practice (dharma) (law, duty, righteousness, intrinsic nature, practice)

• प्रजानाम् (prajānām) - for progeny, for people (of the people, of progeny)

• अभवत् (abhavat) - became the norm, came into existence (was, became, existed)

• नृप (nṛpa) - O king

• तथा (tathā) - similarly (thus, so, similarly)

• कलियुगे (kaliyuge) - in the Kali Yuga

• राजन् (rājan) - O king

• द्वन्द्वम् (dvandvam) - duality (dvandva) (duality, pair, conflict)

• आपेदिरे (āpedire) - they experienced (they attained, they experienced, they resorted to)

• जनाः (janāḥ) - people (people, men)

Words meanings and morphology

द्वापरे (dvāpare) - in the Dvāpara Yuga

(noun)

Locative, masculine, singular of dvāpara

dvāpara - the third of the four yugas, dice with two spots

Note: Refers to the Dvāpara Yuga, the third epoch

मैथुनः (maithunaḥ) - relating to sexual union (relating to sexual union, procreative)

(adjective)

Nominative, masculine, singular of maithuna

maithuna - sexual union, copulation, relating to sexual union

Root: mith (class 1)

धर्मः (dharmaḥ) - practice (dharma) (law, duty, righteousness, intrinsic nature, practice)

(noun)

Nominative, masculine, singular of dharma

dharma - law, duty, righteousness, virtue, intrinsic nature, custom, practice

Root: dhṛ (class 1)

प्रजानाम् (prajānām) - for progeny, for people (of the people, of progeny)

(noun)

Genitive, feminine, plural of prajā

prajā - progeny, offspring, people, subjects

अभवत् (abhavat) - became the norm, came into existence (was, became, existed)

(verb)

3rd person , singular, active, imperfect (laṅ) of bhū

Root: bhū (class 1)

नृप (nṛpa) - O king

(noun)

Vocative, masculine, singular of nṛpa

nṛpa - king, ruler

Compound type : tatpuruṣa (nṛ+pa)

• nṛ – man, person, human being
  noun (masculine)
• pa – protector, preserver
  noun (masculine)
  Root: pā (class 2)

तथा (tathā) - similarly (thus, so, similarly)

(indeclinable)

कलियुगे (kaliyuge) - in the Kali Yuga

(noun)

Locative, masculine, singular of kaliyuga

kaliyuga - the fourth and present epoch, the age of strife

Compound type : tatpuruṣa (kali+yuga)

• kali – strife, quarrel, the fourth age
  noun (masculine)
• yuga – age, epoch, yoke
  noun (masculine)

राजन् (rājan) - O king

(noun)

Vocative, masculine, singular of rājan

rājan - king, sovereign

द्वन्द्वम् (dvandvam) - duality (dvandva) (duality, pair, conflict)

(noun)

Accusative, neuter, singular of dvandva

dvandva - pair, couple, duality, conflict, opposition

आपेदिरे (āpedire) - they experienced (they attained, they experienced, they resorted to)

(verb)

3rd person , plural, middle, perfect (liṭ) of āpad

Prefix: ā

Root: pad (class 4)

जनाः (janāḥ) - people (people, men)

(noun)

Nominative, masculine, plural of jana

jana - person, man, people, creature