महाभारतः mahābhārataḥ - book-5, chapter-126, verse-19

शमे हि सुमहानर्थस्तव पार्थस्य चोभयोः ।
न च रोचयसे राजन्किमन्यद्बुद्धिलाघवात् ॥१९॥

19. śame hi sumahānarthastava pārthasya cobhayoḥ ,
na ca rocayase rājankimanyadbuddhilāghavāt.

19. śame hi sumahān arthaḥ tava pārthasya ca ubhayoḥ
na ca rocayase rājan kim anyat buddhilāghavāt

19. rājan,
śame hi tava pārthasya ca ubhayoḥ sumahān arthaḥ.
na ca (tvam) rocayase.
buddhilāghavāt anyat kim?

19. Indeed, a very great advantage lies in peace (śama) for both you and Pārtha. But you do not favor it, O King. What else could this be but a lack of intelligence?

Words meanings summery:

• शमे (śame) - in peace, in tranquility, in cessation

• हि (hi) - indeed, surely, because, for

• सुमहान् (sumahān) - very great, exceedingly large

• अर्थः (arthaḥ) - benefit, advantage (meaning, purpose, wealth, object, benefit, advantage)

• तव (tava) - your, of you

• पार्थस्य (pārthasya) - of Pārtha, of Arjuna

• च (ca) - and, also

• उभयोः (ubhayoḥ) - of both, belonging to both

• न (na) - not, no

• च (ca) - but (and, also, moreover)

• रोचयसे (rocayase) - you approve (of peace), you favor (peace) (you cause to shine, you make agreeable, you like, you favor)

• राजन् (rājan) - O king, O ruler

• किम् (kim) - what else (could it be)? (what, why, how, is it?)

• अन्यत् (anyat) - other, different

• बुद्धीलाघवात् (buddhīlāghavāt) - due to a lack of intelligence (from lightness of intellect, due to mental deficiency, because of stupidity)

Words meanings and morphology

शमे (śame) - in peace, in tranquility, in cessation

(noun)

Locative, masculine, singular of śama

śama - peace, tranquility, cessation, calm

from √śam (to be calm)

Root: śam (class 4)

Note: Denotes the condition or state.

हि (hi) - indeed, surely, because, for

(indeclinable)

Note: Emphasizes the statement.

सुमहान् (sumahān) - very great, exceedingly large

(adjective)

Nominative, masculine, singular of sumahat

sumahat - very great, very large, enormous

Compound type : tatpuruṣa (su+mahat)

• su – good, well, very
  indeclinable
• mahat – great, large, vast
  adjective (masculine)

Note: Agrees with 'arthaḥ'.

अर्थः (arthaḥ) - benefit, advantage (meaning, purpose, wealth, object, benefit, advantage)

(noun)

Nominative, masculine, singular of artha

artha - purpose, meaning, wealth, object, benefit

Note: Subject of the sentence.

तव (tava) - your, of you

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

Note: Refers to Duryodhana.

पार्थस्य (pārthasya) - of Pārtha, of Arjuna

(proper noun)

Genitive, masculine, singular of pārtha

pārtha - Pārtha (Arjuna, son of Pṛthā)

patronymic from Pṛthā

Note: Refers to Arjuna.

च (ca) - and, also

(indeclinable)

Note: Joins 'tava' and 'pārthasya'.

उभयोः (ubhayoḥ) - of both, belonging to both

(pronoun)

Genitive, dual of ubha

ubha - both

Note: Refers to both Duryodhana and Pārtha.

न (na) - not, no

(indeclinable)

Note: Negates 'rocayase'.

च (ca) - but (and, also, moreover)

(indeclinable)

Note: Conjoins the two clauses, implying contrast.

रोचयसे (rocayase) - you approve (of peace), you favor (peace) (you cause to shine, you make agreeable, you like, you favor)

(verb)

2nd person , singular, middle, present (laṭ) of ruc

causative

formed from √ruc with suffix -aya

Root: ruc (class 1)

Note: Refers to Duryodhana.

राजन् (rājan) - O king, O ruler

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler

Note: Addressed to Duryodhana.

किम् (kim) - what else (could it be)? (what, why, how, is it?)

(pronoun)

Nominative, neuter, singular of kim

kim - what, which, why, how

Note: Used here with 'anyat' to form 'what else'.

अन्यत् (anyat) - other, different

(pronoun)

Nominative, neuter, singular of anya

anya - other, another, different

Note: Follows 'kim'.

बुद्धीलाघवात् (buddhīlāghavāt) - due to a lack of intelligence (from lightness of intellect, due to mental deficiency, because of stupidity)

(noun)

Ablative, neuter, singular of buddhīlāghava

buddhīlāghava - lightness of intellect, intellectual weakness

Compound type : ṣaṣṭhī-tatpuruṣa (buddhi+lāghava)

• buddhi – intellect, understanding, discernment
  noun (feminine)
  from √budh (to know)
  Root: budh (class 1)
• lāghava – lightness, levity, agility, quickness, insignificance
  noun (neuter)
  from laghu (light)

Note: Expresses the cause.