महाभारतः mahābhārataḥ - book-9, chapter-40, verse-17

यदा चापि न शक्नोति राष्ट्रं मोचयितुं नृप ।
अथ वैप्राश्निकांस्तत्र पप्रच्छ जनमेजय ॥१७॥

17. yadā cāpi na śaknoti rāṣṭraṁ mocayituṁ nṛpa ,
atha vaiprāśnikāṁstatra papraccha janamejaya.

17. yadā ca api na śaknoti rāṣṭram mocayitum nṛpa
atha vaiprāśnikān tatra papraccha janamejaya

17. nṛpa janamejaya yadā ca api rāṣṭram mocayitum
na śaknoti atha tatra vaiprāśnikān papraccha

17. And when the king (Janamejaya) was unable to liberate his kingdom, then Janamejaya consulted the inquirers (vaiprāśnikas) there.

Words meanings summery:

• यदा (yadā) - when, whenever

• च (ca) - and, also, moreover

• अपि (api) - introduces a condition or emphasizes 'when' (also, even, too, though)

• न (na) - not, no

• शक्नोति (śaknoti) - is able, can

• राष्ट्रम् (rāṣṭram) - kingdom, realm, nation

• मोचयितुम् (mocayitum) - to release, to free, to liberate

• नृप (nṛpa) - O king, ruler

• अथ (atha) - then, thereupon, now, next

• वैप्राश्निकान् (vaiprāśnikān) - inquirers, questioners, consultants

• तत्र (tatra) - there, in that place, in that matter

• पप्रछ्ह (paprachha) - asked, questioned

• जनमेजय (janamejaya) - Janamejaya (proper name)

Words meanings and morphology

यदा (yadā) - when, whenever

(indeclinable)

From pronominal root yad- + -dā (time suffix)

च (ca) - and, also, moreover

(indeclinable)

अपि (api) - introduces a condition or emphasizes 'when' (also, even, too, though)

(indeclinable)

न (na) - not, no

(indeclinable)

शक्नोति (śaknoti) - is able, can

(verb)

3rd person , singular, active, present (lat) of śak

Root: śak (class 5)

राष्ट्रम् (rāṣṭram) - kingdom, realm, nation

(noun)

Accusative, neuter, singular of rāṣṭra

rāṣṭra - kingdom, realm, nation, country

मोचयितुम् (mocayitum) - to release, to free, to liberate

(indeclinable)

infinitive

Causative stem mocaya- from root muc- (6th class) + -tum suffix for infinitive.

Root: muc (class 6)

नृप (nṛpa) - O king, ruler

(noun)

Vocative, masculine, singular of nṛpa

nṛpa - king, ruler, monarch

Compound of nṛ (man) + pa (protector)

अथ (atha) - then, thereupon, now, next

(indeclinable)

वैप्राश्निकान् (vaiprāśnikān) - inquirers, questioners, consultants

(noun)

Accusative, masculine, plural of vaiprāśnika

vaiprāśnika - one who asks questions, an inquirer, a consultant, an arbiter

Derived from vipraśna (question, inquiry) + -ika (agent suffix)

तत्र (tatra) - there, in that place, in that matter

(indeclinable)

From pronominal root tad- + -tra (locative suffix)

पप्रछ्ह (paprachha) - asked, questioned

(verb)

3rd person , singular, active, perfect (lit) of prachh

Root: prachh (class 6)

जनमेजय (janamejaya) - Janamejaya (proper name)

(proper noun)

Nominative, masculine, singular of janamejaya

janamejaya - Janamejaya (name of a king, son of Parikshit, to whom the Mahābhārata was narrated)

Compound: jana (people) + eṃjaya (causing to tremble); 'one who makes people tremble'