महाभारतः mahābhārataḥ - book-3, chapter-2, verse-77

तथा त्वमपि कौन्तेय शममास्थाय पुष्कलम् ।
तपसा सिद्धिमन्विच्छ योगसिद्धिं च भारत ॥७७॥

77. tathā tvamapi kaunteya śamamāsthāya puṣkalam ,
tapasā siddhimanviccha yogasiddhiṁ ca bhārata.

77. tathā tvam api kaunteya śamam āsthāya puṣkalam
tapasā siddhim anviccha yoga-siddhim ca bhārata

77. Likewise, O son of Kunti (Arjuna), you too should establish abundant tranquility and seek spiritual perfection (siddhi) through austerity (tapas), and also the perfection of spiritual discipline (yoga-siddhi), O descendant of Bharata.

Words meanings summery:

• तथा (tathā) - thus, so, likewise

• त्वम् (tvam) - you

• अपि (api) - also, even, too

• कौन्तेय (kaunteya) - Addressing Arjuna (O son of Kunti (Arjuna))

• शमम् (śamam) - tranquility, calm, peace, quietude

• आस्थाय (āsthāya) - having established (having adopted, having resorted to, having established)

• पुष्कलम् (puṣkalam) - abundant, ample, plentiful, excellent

• तपसा (tapasā) - by austerity, penance (tapas)

• सिद्धिम् (siddhim) - perfection, success, accomplishment, spiritual power (siddhi)

• अन्विच्छ (anviccha) - seek, desire, pursue

• योग-सिद्धिम् (yoga-siddhim) - perfection in yoga, yogic (yoga) accomplishment

• च (ca) - and

• भारत (bhārata) - Addressing Arjuna (O descendant of Bharata (Arjuna))

Words meanings and morphology

तथा (tathā) - thus, so, likewise

(indeclinable)

त्वम् (tvam) - you

(pronoun)

Nominative, singular of tvad

tvad - you (singular)

अपि (api) - also, even, too

(indeclinable)

कौन्तेय (kaunteya) - Addressing Arjuna (O son of Kunti (Arjuna))

(proper noun)

Vocative, masculine, singular of kaunteya

kaunteya - son of Kunti, Arjuna

शमम् (śamam) - tranquility, calm, peace, quietude

(noun)

Accusative, masculine, singular of śama

śama - tranquility, calm, peace, quietude, suppression

आस्थाय (āsthāya) - having established (having adopted, having resorted to, having established)

(indeclinable)

Absolutive (Gerund)

from ā + sthā (to stand, resort to)

Prefix: ā

Root: sthā

पुष्कलम् (puṣkalam) - abundant, ample, plentiful, excellent

(adjective)

Accusative, masculine, singular of puṣkala

puṣkala - abundant, ample, plentiful, excellent, magnificent

तपसा (tapasā) - by austerity, penance (tapas)

(noun)

Instrumental, neuter, singular of tapas

tapas - austerity, penance, spiritual fervor (tapas)

सिद्धिम् (siddhim) - perfection, success, accomplishment, spiritual power (siddhi)

(noun)

Accusative, feminine, singular of siddhi

siddhi - perfection, success, accomplishment, spiritual power, supernatural faculty (siddhi)

अन्विच्छ (anviccha) - seek, desire, pursue

(verb)

2nd person , singular, active, present imperative (loṭ) of anviṣ

root iṣ (to seek) with prefix anu, becomes icch in present tense

Prefix: anu

Root: iṣ (class 4)

योग-सिद्धिम् (yoga-siddhim) - perfection in yoga, yogic (yoga) accomplishment

(noun)

Accusative, feminine, singular of yoga-siddhi

yoga-siddhi - perfection in yoga, yogic accomplishment

Compound type : tatpurusha (yoga+siddhi)

• yoga – spiritual discipline, union (yoga)
  noun (masculine)
  from root yuj (to yoke, join)
  Root: yuj
• siddhi – perfection, success, accomplishment, spiritual power (siddhi)
  noun (feminine)

च (ca) - and

(indeclinable)

भारत (bhārata) - Addressing Arjuna (O descendant of Bharata (Arjuna))

(proper noun)

Vocative, masculine, singular of bhārata

bhārata - descendant of Bharata, an Indian, a name of Arjuna or Yudhiṣṭhira