महाभारतः mahābhārataḥ - book-3, chapter-161, verse-13

दृष्ट्वा विचित्राणि गिरौ वनानि किरीटिनं चिन्तयतामभीक्ष्णम् ।
बभूव रात्रिर्दिवसश्च तेषां संवत्सरेणैव समानरूपः ॥१३॥

13. dṛṣṭvā vicitrāṇi girau vanāni; kirīṭinaṁ cintayatāmabhīkṣṇam ,
babhūva rātrirdivasaśca teṣāṁ; saṁvatsareṇaiva samānarūpaḥ.

13. dṛṣṭvā vicitrāṇi girau vanāni
kirīṭinam cintayatām abhīkṣṇam
babhūva rātriḥ divasaḥ ca teṣām
saṃvatsareṇa eva samānarūpaḥ

13. While they constantly contemplated the diadem-wearer (kirīṭin) [Arjuna], having seen the wondrous forests on the mountain, for them, night and day became of a similar nature, like a year itself.

Words meanings summery:

• दृष्ट्वा (dṛṣṭvā) - having seen

• विचित्राणि (vicitrāṇi) - wondrous (varied, diverse, wonderful, beautiful)

• गिरौ (girau) - on the mountain

• वनानि (vanāni) - forests, woods

• किरीटिनम् (kirīṭinam) - the diadem-wearer (kirīṭin) [Arjuna] (the one wearing a diadem, the crowned one (Arjuna))

• चिन्तयताम् (cintayatām) - while they contemplated (of those contemplating, of those thinking)

• अभीक्ष्णम् (abhīkṣṇam) - constantly, repeatedly, frequently

• बभूव (babhūva) - it became, it was

• रात्रिः (rātriḥ) - night

• दिवसः (divasaḥ) - day

• च (ca) - and

• तेषाम् (teṣām) - for them (of them, for them)

• संवत्सरेण (saṁvatsareṇa) - like a year (instrumental of comparison) (by a year, for a year, in a year)

• एव (eva) - only, just, indeed, precisely

• समानरूपः (samānarūpaḥ) - of a similar nature (like a year) (of similar form, of the same appearance/nature)

Words meanings and morphology

दृष्ट्वा (dṛṣṭvā) - having seen

(indeclinable)

Absolutive (Gerund)

From √dṛś (to see) + -tvā

Root: dṛś (class 1)

विचित्राणि (vicitrāṇi) - wondrous (varied, diverse, wonderful, beautiful)

(adjective)

Accusative, neuter, plural of vicitra

vicitra - variegated, diverse, strange, wonderful, beautiful

Prefix: vi

Root: citr (class 10)

Note: Agrees with 'vanāni'.

गिरौ (girau) - on the mountain

(noun)

Locative, masculine, singular of giri

giri - mountain, hill

Root: gṛ (class 6)

वनानि (vanāni) - forests, woods

(noun)

Accusative, neuter, plural of vana

vana - forest, wood, grove, water

Root: van (class 1)

Note: Object of 'dṛṣṭvā'.

किरीटिनम् (kirīṭinam) - the diadem-wearer (kirīṭin) [Arjuna] (the one wearing a diadem, the crowned one (Arjuna))

(noun)

Accusative, masculine, singular of kirīṭin

kirīṭin - wearing a diadem, crowned, (a name of Arjuna)

From kirīṭa (diadem) + -in

Note: Object of 'cintayatām'.

चिन्तयताम् (cintayatām) - while they contemplated (of those contemplating, of those thinking)

(adjective)

Genitive, masculine, plural of cintayat

cintayat - contemplating, thinking, worrying

Present Active Participle

From √cit (to perceive, think) in the causative, with -yat suffix

Root: cit (class 10)

Note: This genitive plural participle modifies 'teṣām' (for them, while *they* were thinking).

अभीक्ष्णम् (abhīkṣṇam) - constantly, repeatedly, frequently

(indeclinable)

Prefix: abhi

Root: īkṣ (class 1)

Note: Adverb modifying 'cintayatām'.

बभूव (babhūva) - it became, it was

(verb)

3rd person , singular, active, perfect (lit) of bhū

Perfect Tense, 3rd Person Singular

Root: bhū (class 1)

Note: The subject is 'rātriḥ divasaḥ ca' (night and day). Grammatically singular as a collective idea.

रात्रिः (rātriḥ) - night

(noun)

Nominative, feminine, singular of rātri

rātri - night

Note: Part of the compound subject 'rātriḥ divasaḥ ca'.

दिवसः (divasaḥ) - day

(noun)

Nominative, masculine, singular of divasa

divasa - day

Note: Part of the compound subject 'rātriḥ divasaḥ ca'.

च (ca) - and

(indeclinable)

तेषाम् (teṣām) - for them (of them, for them)

(pronoun)

Genitive, masculine, plural of tad

tad - that, he, she, it

Note: Refers to the people contemplating Arjuna.

संवत्सरेण (saṁvatsareṇa) - like a year (instrumental of comparison) (by a year, for a year, in a year)

(noun)

Instrumental, masculine, singular of saṃvatsara

saṁvatsara - year

Prefix: sam

Root: vas (class 1)

Note: Used in comparison.

एव (eva) - only, just, indeed, precisely

(indeclinable)

समानरूपः (samānarūpaḥ) - of a similar nature (like a year) (of similar form, of the same appearance/nature)

(adjective)

Nominative, masculine, singular of samānarūpa

samānarūpa - of similar form, uniform, resembling

Compound type : karmadhāraya (samāna+rūpa)

• samāna – similar, same, equal
  adjective
  From sam-√an (to breathe)
  Prefix: sam
  Root: an (class 2)
• rūpa – form, shape, appearance, nature
  noun (neuter)

Note: Agrees with 'rātriḥ divasaḥ ca' (collective singular).