महाभारतः mahābhārataḥ - book-13, chapter-130, verse-12

चीरवल्कलसंवीतैर्मृगचर्मनिवासिभिः ।
कार्या यात्रा यथाकालं यथाधर्मं यथाविधि ॥१२॥

12. cīravalkalasaṁvītairmṛgacarmanivāsibhiḥ ,
kāryā yātrā yathākālaṁ yathādharmaṁ yathāvidhi.

12. cīravalkalasaṃvītaiḥ mṛgacarmnivāsibhiḥ kāryā
yātrā yathākālam yathādharmaṃ yathāvidhi

12. cīravalkalasaṃvītaiḥ mṛgacarmnivāsibhiḥ yātrā
kāryā yathākālam yathādharmaṃ yathāvidhi

12. The life's journey (yātrā) of those who are clad in bark-garments and wear deerskins should be conducted at the proper time, in accordance with their intrinsic nature (dharma), and following the prescribed rules.

Words meanings summery:

• चीरवल्कलसंवीतैः (cīravalkalasaṁvītaiḥ) - by ascetics or hermits who wear garments of bark-fiber (by those covered with bark-garments and tree-bark)

• मृगचर्म्निवासिभिः (mṛgacarmnivāsibhiḥ) - by ascetics or hermits who wear deerskins (by those dwelling in deer-skins, wearing deer-skins)

• कार्या (kāryā) - should be conducted (referring to the life's journey) (should be done, ought to be done, to be performed)

• यात्रा (yātrā) - life's journey, conduct of life (of ascetics) (journey, pilgrimage, procession, conduct of life, means of livelihood)

• यथाकालम् (yathākālam) - at the appropriate time (at the proper time, according to time)

• यथाधर्मं (yathādharmaṁ) - in accordance with their intrinsic nature (dharma) (according to (dharma), according to law/duty)

• यथाविधि (yathāvidhi) - following the prescribed rules (according to rule, according to procedure, regularly)

Words meanings and morphology

चीरवल्कलसंवीतैः (cīravalkalasaṁvītaiḥ) - by ascetics or hermits who wear garments of bark-fiber (by those covered with bark-garments and tree-bark)

(adjective)

Instrumental, masculine, plural of cīravalkalasaṃvīta

cīravalkalasaṁvīta - covered with bark-garments and tree-bark

Past Passive Participle

From verb root √vyeṣ (to cover) with prefix sam- and associated with cīra-valkala (bark-garments). Compound adjective.

Compound type : Bahuvrīhi (cīra+valkala+saṃvīta)

• cīra – bark; strip of bark; garment made of bark
  noun (neuter)
• valkala – bark of a tree (used for garments); bark-garment
  noun (masculine/neuter)
• saṃvīta – covered, clothed, clad
  adjective (masculine/neuter)
  Past Passive Participle
  From √vyeṣ (to cover) with prefix sam-
  Prefix: sam
  Root: √vyeṣ (class 1)

Note: Used here as an attribute of implied individuals.

मृगचर्म्निवासिभिः (mṛgacarmnivāsibhiḥ) - by ascetics or hermits who wear deerskins (by those dwelling in deer-skins, wearing deer-skins)

(adjective)

Instrumental, masculine, plural of mṛgacarmnivāsin

mṛgacarmnivāsin - dwelling in deer-skins, wearing deer-skins

Compound noun, from mṛgacarman (deer-skin) + nivāsin (dweller/wearer).

Compound type : Upapada Tatpuruṣa (mṛgacarman+nivāsin)

• mṛgacarman – deer-skin
  noun (neuter)
  Tatpuruṣa compound: mṛga (deer) + carman (skin)
• nivāsin – dweller, resident, wearer
  noun/adjective (masculine)
  Agent noun
  From √vas (to dwell, to wear) with prefix ni- and suffix -in
  Prefix: ni
  Root: √vas (class 1)

Note: Used as an attribute of implied individuals, parallel to cīravalkalasaṃvītaiḥ.

कार्या (kāryā) - should be conducted (referring to the life's journey) (should be done, ought to be done, to be performed)

(adjective)

Nominative, feminine, singular of kārya

kārya - to be done, to be made, duty, work

Gerundive (Potential Passive Participle)

From root √kṛ (to do, make) with suffix -ya.

Root: √kṛ (class 8)

Note: Agrees with yātrā.

यात्रा (yātrā) - life's journey, conduct of life (of ascetics) (journey, pilgrimage, procession, conduct of life, means of livelihood)

(noun)

Nominative, feminine, singular of yātrā

yātrā - journey, procession, going, march, conduct, means of living

From root √yā (to go) with suffix -trā.

Root: √yā (class 2)

Note: Subject of the sentence.

यथाकालम् (yathākālam) - at the appropriate time (at the proper time, according to time)

(indeclinable)

Avyayībhāva compound

Compound type : Avyayībhāva (yathā+kāla)

• yathā – as, according to, in accordance with
  indeclinable
• kāla – time, season, proper time
  noun (masculine)

Note: Adverbial usage.

यथाधर्मं (yathādharmaṁ) - in accordance with their intrinsic nature (dharma) (according to (dharma), according to law/duty)

(indeclinable)

Avyayībhāva compound

Compound type : Avyayībhāva (yathā+dharma)

• yathā – as, according to, in accordance with
  indeclinable
• dharma – natural law, constitution, duty, righteousness, intrinsic nature, religious merit
  noun (masculine)
  Root: √dhṛ (class 1)

Note: Adverbial usage.

यथाविधि (yathāvidhi) - following the prescribed rules (according to rule, according to procedure, regularly)

(indeclinable)

Avyayībhāva compound

Compound type : Avyayībhāva (yathā+vidhi)

• yathā – as, according to, in accordance with
  indeclinable
• vidhi – rule, injunction, ordinance, method, procedure
  noun (masculine)
  Prefix: vi
  Root: √dhā (class 3)

Note: Adverbial usage.