महाभारतः mahābhārataḥ - book-3, chapter-209, verse-3

चातुर्मास्येषु यस्येष्ट्यामश्वमेधेऽग्रजः पशुः ।
दीप्तो ज्वालैरनेकाभैरग्निरेकोऽथ वीर्यवान् ॥३॥

3. cāturmāsyeṣu yasyeṣṭyāmaśvamedhe'grajaḥ paśuḥ ,
dīpto jvālairanekābhairagnireko'tha vīryavān.

3. cāturmāsyeṣu yasya iṣṭyām aśvamedhe agrajaḥ paśuḥ
dīptaḥ jvālaiḥ anekābhāiḥ agniḥ ekaḥ atha vīryavān

3. yasya cāturmāsyeṣu iṣṭyām aśvamedhe agrajaḥ paśuḥ (bhavati); atha ekaḥ vīryavān agniḥ anekābhāiḥ jvālaiḥ dīptaḥ (bhavati).

3. In the Cāturmāsya (seasonal) Vedic rituals, and in whose offering (Vedic ritual), and (where) the chief animal is involved in the Aśvamedha (horse ritual); then, the one, powerful fire (agni) blazes with many-colored flames.

Words meanings summery:

• चातुर्मास्येषु (cāturmāsyeṣu) - in the Cāturmāsya (seasonal) Vedic rituals (in the Cāturmāsya rituals, in the four-month period)

• यस्य (yasya) - of whom, pertaining to which (person/entity) (whose, of which)

• इष्ट्याम् (iṣṭyām) - in the offering (Vedic ritual) (in the offering, in the Vedic ritual, in the sacrifice)

• अश्वमेधे (aśvamedhe) - in the Aśvamedha (horse ritual) (in the horse sacrifice, in the Aśvamedha ritual)

• अग्रजः (agrajaḥ) - the chief, the foremost (first-born, elder, chief)

• पशुः (paśuḥ) - the animal (for sacrifice) (animal, cattle, sacrificial animal)

• दीप्तः (dīptaḥ) - blazing, radiant (blazing, radiant, shining, bright)

• ज्वालैः (jvālaiḥ) - by flames (by flames, with flames)

• अनेकाभाइः (anekābhāiḥ) - having many colors, countless (having many colors, of manifold appearance)

• अग्निः (agniḥ) - the fire (deity) (fire, the deity Agni)

• एकः (ekaḥ) - one, unique (one, unique, single)

• अथ (atha) - then, moreover (then, thereupon, moreover, and)

• वीर्यवान् (vīryavān) - powerful, potent (powerful, potent, valorous)

Words meanings and morphology

चातुर्मास्येषु (cāturmāsyeṣu) - in the Cāturmāsya (seasonal) Vedic rituals (in the Cāturmāsya rituals, in the four-month period)

(noun)

Locative, neuter, plural of cāturmāsya

cāturmāsya - relating to the four months; a sacrifice or observance performed at intervals of four months

From 'caturmāsa' (four months) + suffix 'ya'.

यस्य (yasya) - of whom, pertaining to which (person/entity) (whose, of which)

(pronoun)

Genitive, masculine, singular of yad

yad - which, who, what, inasmuch as

Note: Relative pronoun.

इष्ट्याम् (iṣṭyām) - in the offering (Vedic ritual) (in the offering, in the Vedic ritual, in the sacrifice)

(noun)

Locative, feminine, singular of iṣṭi

iṣṭi - an offering, a Vedic ritual, a sacrifice, a desire

From root 'yaj' (to sacrifice, worship) + suffix 'ti'.

Root: yaj (class 1)

अश्वमेधे (aśvamedhe) - in the Aśvamedha (horse ritual) (in the horse sacrifice, in the Aśvamedha ritual)

(noun)

Locative, masculine, singular of aśvamedha

aśvamedha - the horse sacrifice, a specific ancient Vedic ritual performed by kings

Compound of 'aśva' (horse) and 'medha' (sacrifice).

Compound type : tatpuruṣa (aśva+medha)

• aśva – horse
  noun (masculine)
• medha – sacrifice, oblations
  noun (masculine)
  From root 'medh' (to kill, to offer fat).
  Root: medh (class 1)

अग्रजः (agrajaḥ) - the chief, the foremost (first-born, elder, chief)

(adjective)

Nominative, masculine, singular of agraja

agraja - first-born, elder brother, chief, leading, produced at the beginning

Compound of 'agra' (front, first) and 'ja' (born, produced).

Compound type : tatpuruṣa (agra+ja)

• agra – front, tip, chief, first
  noun (neuter)
• ja – born, produced from
  adjective
  suffix 'ja' from root 'jan'
  Derived from root 'jan' (to be born, produced).
  Root: jan (class 4)

Note: Agrees with 'paśuḥ'.

पशुः (paśuḥ) - the animal (for sacrifice) (animal, cattle, sacrificial animal)

(noun)

Nominative, masculine, singular of paśu

paśu - animal, cattle, sacrificial animal, any beast

Note: Subject of an implied verb.

दीप्तः (dīptaḥ) - blazing, radiant (blazing, radiant, shining, bright)

(adjective)

Nominative, masculine, singular of dīpta

dīpta - shining, blazing, radiant, splendid

Past Passive Participle

From root 'dīp' (to shine, blaze).

Root: dīp (class 4)

Note: Agrees with 'agniḥ'.

ज्वालैः (jvālaiḥ) - by flames (by flames, with flames)

(noun)

Instrumental, feminine, plural of jvālā

jvālā - flame, blaze

Root: jval (class 1)

Note: Instrumental of agency/accompaniment.

अनेकाभाइः (anekābhāiḥ) - having many colors, countless (having many colors, of manifold appearance)

(adjective)

Instrumental, feminine, plural of anekābha

anekābha - having many forms, of many colours, of varied appearance

Compound of 'aneka' (not one, many) and 'ābha' (appearance, color, splendor).

Compound type : bahuvrīhi (aneka+ābha)

• aneka – not one, many, numerous, various
  adjective
  Negation 'an' + 'eka' (one).
• ābha – appearance, color, splendor, resembling
  noun (masculine)
  Root: bhā (class 2)

Note: Agrees with 'jvālaiḥ'.

अग्निः (agniḥ) - the fire (deity) (fire, the deity Agni)

(noun)

Nominative, masculine, singular of agni

agni - fire, the god of fire, sacrificial fire

Root: ag

Note: Subject of the second part of the verse.

एकः (ekaḥ) - one, unique (one, unique, single)

(adjective)

Nominative, masculine, singular of eka

eka - one, a single, unique, alone

Note: Agrees with 'agniḥ'.

अथ (atha) - then, moreover (then, thereupon, moreover, and)

(indeclinable)

वीर्यवान् (vīryavān) - powerful, potent (powerful, potent, valorous)

(adjective)

Nominative, masculine, singular of vīryavat

vīryavat - powerful, strong, potent, valorous, heroic

From 'vīrya' (strength, potency) + possessive suffix 'mat/vat'.

Note: Agrees with 'agniḥ'.