महाभारतः mahābhārataḥ - book-5, chapter-173, verse-18

स तामाश्वासयत्कन्यां दृष्टान्तागमहेतुभिः ।
सान्त्वयामास कार्यं च प्रतिजज्ञे द्विजैः सह ॥१८॥

18. sa tāmāśvāsayatkanyāṁ dṛṣṭāntāgamahetubhiḥ ,
sāntvayāmāsa kāryaṁ ca pratijajñe dvijaiḥ saha.

18. saḥ tām āśvāsayat kanyām dṛṣṭānta-āgama-hetubhiḥ
sāntvayāmāsa kāryaṃ ca pratijajñe dvijaiḥ saha

18. saḥ tām kanyām dṛṣṭānta-āgama-hetubhiḥ āśvāsayat
sāntvayāmāsa ca dvijaiḥ saha kāryaṃ pratijajñe

18. He comforted and consoled that maiden with examples, scriptural injunctions (āgama), and logical reasons. And he promised to undertake her cause (kārya) along with the brahmins (dvija).

Words meanings summery:

• सः (saḥ) - he

• ताम् (tām) - her, that (feminine)

• आश्वासयत् (āśvāsayat) - he comforted, he reassured

• कन्याम् (kanyām) - the maiden, the girl

• दृष्टान्त-आगम-हेतुभिः (dṛṣṭānta-āgama-hetubhiḥ) - by means of examples, scriptures (āgama), and reasons

• सान्त्वयामास (sāntvayāmāsa) - he consoled, he pacified

• कार्यम् (kāryam) - the task, the matter, the cause

• च (ca) - and, also

• प्रतिजज्ञे (pratijajñe) - he promised, he undertook

• द्विजैः (dvijaiḥ) - by the brahmins, by the twice-born

• सह (saha) - with, along with

Words meanings and morphology

सः (saḥ) - he

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

ताम् (tām) - her, that (feminine)

(pronoun)

Accusative, feminine, singular of tad

tad - that, he, she, it

आश्वासयत् (āśvāsayat) - he comforted, he reassured

(verb)

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

Causative form of root śvas.

Prefix: ā

Root: śvas (class 2)

कन्याम् (kanyām) - the maiden, the girl

(noun)

Accusative, feminine, singular of kanyā

kanyā - maiden, girl, daughter

दृष्टान्त-आगम-हेतुभिः (dṛṣṭānta-āgama-hetubhiḥ) - by means of examples, scriptures (āgama), and reasons

(noun)

Instrumental, masculine, plural of dṛṣṭāntāgamahetu

dṛṣṭāntāgamahetu - examples, scriptures, and reasons

Compound type : Dvandva (dṛṣṭānta+āgama+hetu)

• dṛṣṭānta – example, illustration, parable
  noun (masculine)
• āgama – sacred text, tradition, knowledge transmitted by tradition, arrival
  noun (masculine)
  Prefix: ā
  Root: gam (class 1)
• hetu – cause, reason, motive, argument
  noun (masculine)
  Root: hi (class 5)

सान्त्वयामास (sāntvayāmāsa) - he consoled, he pacified

(verb)

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

Root: sāntv (class 10)

Note: Periphrastic perfect with 'āmāsa'.

कार्यम् (kāryam) - the task, the matter, the cause

(noun)

Accusative, neuter, singular of kārya

kārya - to be done, duty, business, matter, task, cause

Gerundive

Derived from root kṛ (to do, make) with suffix -ya (meaning 'to be done').

Root: kṛ (class 8)

च (ca) - and, also

(indeclinable)

प्रतिजज्ञे (pratijajñe) - he promised, he undertook

(verb)

3rd person , singular, middle, perfect (liṭ) of pratijñā

Prefix: prati

Root: jñā (class 9)

द्विजैः (dvijaiḥ) - by the brahmins, by the twice-born

(noun)

Instrumental, masculine, plural of dvija

dvija - a brahmin, a bird, a tooth, one born twice

सह (saha) - with, along with

(indeclinable)

Note: Governs the instrumental case.