महाभारतः mahābhārataḥ - book-3, chapter-48, verse-15

समागम्य वृतस्तत्र पाण्डवैर्मधुसूदनः ।
सारथ्ये फल्गुनस्याजौ तथेत्याह च तान्हरिः ॥१५॥

15. samāgamya vṛtastatra pāṇḍavairmadhusūdanaḥ ,
sārathye phalgunasyājau tathetyāha ca tānhariḥ.

15. samāgamya vṛtaḥ tatra pāṇḍavaiḥ madhusūdanaḥ
sāratthye phalgunasya ājau tathā iti āha ca tān hariḥ

15. When the Pāṇḍavas met Kṛṣṇa (Madhusūdana) there and requested him to be Arjuna's charioteer in battle, Hari (Kṛṣṇa) said to them, "So be it."

Words meanings summery:

• समागम्य (samāgamya) - having met, having approached

• वृतः (vṛtaḥ) - chosen, requested, selected

• तत्र (tatra) - there, in that place

• पाण्डवैः (pāṇḍavaiḥ) - by the Pāṇḍavas

• मधुसूदनः (madhusūdanaḥ) - killer of Madhu (an epithet of Kṛṣṇa)

• सारत्थ्ये (sāratthye) - in charioteering, for the role of charioteer

• फल्गुनस्य (phalgunasya) - of Arjuna (an epithet for Arjuna)

• आजौ (ājau) - in battle, in conflict

• तथा (tathā) - Used to express assent ('so be it') (so, thus, in that manner)

• इति (iti) - thus, in this manner (marks direct speech)

• आह (āha) - said, spoke

• च (ca) - and, also

• तान् (tān) - Refers to the Pāṇḍavas (them (masculine plural))

• हरिः (hariḥ) - Refers to Kṛṣṇa (Hari (an epithet of Kṛṣṇa/Viṣṇu))

Words meanings and morphology

समागम्य (samāgamya) - having met, having approached

(indeclinable)

Absolutive (Gerund)

Formed from prefix sam- + ā- + root gam- (to go) + suffix -ya

Prefixes: sam+ā

Root: gam (class 1)

वृतः (vṛtaḥ) - chosen, requested, selected

(adjective)

Nominative, masculine, singular of vṛta

vṛta - chosen, selected, requested, appointed

Past Passive Participle

From root vṛ- (to choose, select, appoint) + suffix -ta

Root: vṛ (class 5)

Note: Qualifies Madhusūdana.

तत्र (tatra) - there, in that place

(indeclinable)

Derived from pronominal stem tad- + suffix -tra

पाण्डवैः (pāṇḍavaiḥ) - by the Pāṇḍavas

(proper noun)

Instrumental, masculine, plural of pāṇḍava

pāṇḍava - descendant of Pāṇḍu, a Pāṇḍava

Formed with suffix -a from Pāṇḍu

Note: Agent of 'vṛtaḥ'.

मधुसूदनः (madhusūdanaḥ) - killer of Madhu (an epithet of Kṛṣṇa)

(proper noun)

Nominative, masculine, singular of madhusūdana

madhusūdana - destroyer of Madhu, an epithet of Kṛṣṇa or Viṣṇu

Compound: Madhu (demon's name) + sūdana (destroyer)

Compound type : tatpuruṣa (madhu+sūdana)

• madhu – nectar, honey; name of a demon
  noun (masculine)
• sūdana – destroyer, killer
  noun (masculine)
  From root sūd- (to kill, destroy)
  Root: sūd (class 10)

Note: Subject of 'āha'.

सारत्थ्ये (sāratthye) - in charioteering, for the role of charioteer

(noun)

Locative, neuter, singular of sāratthya

sāratthya - charioteering, the duty of a charioteer

From sārathi (charioteer) + -ya (suffix forming abstract noun)

Note: Indicates purpose or context.

फल्गुनस्य (phalgunasya) - of Arjuna (an epithet for Arjuna)

(proper noun)

Genitive, masculine, singular of phalguna

phalguna - Arjuna, an epithet of Arjuna

Note: Possession, 'of Arjuna'.

आजौ (ājau) - in battle, in conflict

(noun)

Locative, masculine, singular of āji

āji - battle, combat, contest

Note: Indicates place or context.

तथा (tathā) - Used to express assent ('so be it') (so, thus, in that manner)

(indeclinable)

Derived from pronominal stem tad-

इति (iti) - thus, in this manner (marks direct speech)

(indeclinable)

आह (āha) - said, spoke

(verb)

3rd person , singular, active, perfect (liṭ) of ah

Irregular perfect tense form

Perfect active 3rd singular of root ah. Also treated as an impersonal verb 'to say'. Its forms are restricted. Pāṇini considers its root to be 'brū'. Some grammarians treat it as a defective root 'ah'.

Root: ah (class 2)

च (ca) - and, also

(indeclinable)

Conjunction

तान् (tān) - Refers to the Pāṇḍavas (them (masculine plural))

(pronoun)

Accusative, masculine, plural of tad

tad - that, those, he, she, it, they

Demonstrative pronoun

Note: Refers to the Pāṇḍavas.

हरिः (hariḥ) - Refers to Kṛṣṇa (Hari (an epithet of Kṛṣṇa/Viṣṇu))

(proper noun)

Nominative, masculine, singular of hari

hari - golden-colored, tawny; a lion; Viṣṇu, Kṛṣṇa, Indra; a horse

Note: Subject of 'āha'.