महाभारतः mahābhārataḥ - book-1, chapter-37, verse-23

यदि राजा न रक्षेत पीडा वै नः परा भवेत् ।
न शक्नुयाम चरितुं धर्मं पुत्र यथासुखम् ॥२३॥

23. yadi rājā na rakṣeta pīḍā vai naḥ parā bhavet ,
na śaknuyāma carituṁ dharmaṁ putra yathāsukham.

23. yadi rājā na rakṣeta pīḍā vai naḥ parā bhavet
na śaknuyāma caritum dharmam putra yathāsukham

23. O son, if the king does not protect (us), indeed, great suffering would come upon us. We would not be able to practice Dharma as we please.

Words meanings summery:

• यदि (yadi) - if, in case that

• राजा (rājā) - king, ruler

• न (na) - not, no

• रक्षेत (rakṣeta) - should protect, would protect

• पीडा (pīḍā) - suffering, affliction, pain

• वै (vai) - indeed, surely, verily

• नः (naḥ) - to us (us, to us, our)

• परा (parā) - great, extreme (supreme, highest, extreme, great)

• भवेत् (bhavet) - would be, should be, would happen

• न (na) - not, no

• शक्नुयाम (śaknuyāma) - we would be able

• चरितुम् (caritum) - to practice, to perform (to walk, to roam, to practice, to perform)

• धर्मम् (dharmam) - Dharma, righteousness, duty

• पुत्र (putra) - O son (son)

• यथासुखम् (yathāsukham) - as we please, comfortably (as comfortably as possible, at ease, as one pleases)

Words meanings and morphology

यदि (yadi) - if, in case that

(indeclinable)

राजा (rājā) - king, ruler

(noun)

Nominative, masculine, singular of rājan

rājan - king, ruler

न (na) - not, no

(indeclinable)

रक्षेत (rakṣeta) - should protect, would protect

(verb)

3rd person , singular, active, optative (vidhiliṅ) of rakṣ

Root: rakṣ (class 1)

पीडा (pīḍā) - suffering, affliction, pain

(noun)

Nominative, feminine, singular of pīḍā

pīḍā - suffering, pain, distress, injury

action noun

from root pīḍ

Root: pīḍ (class 10)

वै (vai) - indeed, surely, verily

(indeclinable)

नः (naḥ) - to us (us, to us, our)

(pronoun)

plural of asmad

asmad - we, us

परा (parā) - great, extreme (supreme, highest, extreme, great)

(adjective)

Nominative, feminine, singular of para

para - supreme, highest, ultimate, distant, other

भवेत् (bhavet) - would be, should be, would happen

(verb)

3rd person , singular, active, optative (vidhiliṅ) of bhū

Root: bhū (class 1)

न (na) - not, no

(indeclinable)

शक्नुयाम (śaknuyāma) - we would be able

(verb)

1st person , plural, active, optative (vidhiliṅ) of śak

Root: śak (class 5)

चरितुम् (caritum) - to practice, to perform (to walk, to roam, to practice, to perform)

(infinitive)

धर्मम् (dharmam) - Dharma, righteousness, duty

(noun)

Accusative, masculine, singular of dharma

dharma - righteousness, duty, law, virtue, custom

Root: dhṛ (class 1)

पुत्र (putra) - O son (son)

(noun)

Vocative, masculine, singular of putra

putra - son, child

यथासुखम् (yathāsukham) - as we please, comfortably (as comfortably as possible, at ease, as one pleases)

(indeclinable)

Compound type : avyayībhāva (yathā+sukha)

• yathā – as, just as, according to
  indeclinable
• sukha – happiness, ease, comfort
  noun (neuter)