महाभारतः mahābhārataḥ - book-12, chapter-138, verse-65

मृदुना सुमृदुं हन्ति मृदुना हन्ति दारुणम् ।
नासाध्यं मृदुना किंचित्तस्मात्तीक्ष्णतरं मृदु ॥६५॥

65. mṛdunā sumṛduṁ hanti mṛdunā hanti dāruṇam ,
nāsādhyaṁ mṛdunā kiṁcittasmāttīkṣṇataraṁ mṛdu.

65. mṛdunā sumṛdum hanti mṛdunā hanti dāruṇam na
asādhyam mṛdunā kiṃcit tasmāt tīkṣṇataram mṛdu

65. mṛdunā sumṛdum hanti mṛdunā dāruṇam hanti mṛdunā
kiṃcit asādhyam na tasmāt mṛdu tīkṣṇataram

65. Softness overcomes even the very gentle, and by softness one also conquers the harsh. There is nothing that cannot be achieved by softness. Therefore, softness is more potent than sharpness.

Words meanings summery:

• मृदुना (mṛdunā) - by softness, by gentleness, by a gentle one

• सुमृदुम् (sumṛdum) - very soft, exceedingly gentle

• हन्ति (hanti) - overcomes, conquers (kills, strikes, destroys, overcomes)

• मृदुना (mṛdunā) - by softness, by gentleness, by a gentle one

• हन्ति (hanti) - overcomes, conquers (kills, strikes, destroys, overcomes)

• दारुणम् (dāruṇam) - the harsh, the fierce (one) (harsh, fierce, cruel, severe)

• न (na) - not (not, no, nor)

• असाध्यम् (asādhyam) - unachievable, impossible to accomplish (unachievable, impossible, incurable)

• मृदुना (mṛdunā) - by softness, by gentleness, by a gentle one

• किंचित् (kiṁcit) - anything (in a negative context, 'nothing') (something, anything, a little)

• तस्मात् (tasmāt) - therefore (therefore, from that, than that)

• तीक्ष्णतरम् (tīkṣṇataram) - more potent, sharper (sharper, more pungent, more intense, more potent)

• मृदु (mṛdu) - softness (as a concept) (soft, gentle, mild, tenderness, softness)

Words meanings and morphology

मृदुना (mṛdunā) - by softness, by gentleness, by a gentle one

(adjective)

Instrumental, singular of mṛdu

mṛdu - soft, gentle, mild, tender

Note: Used as an instrumental noun: 'by softness'.

सुमृदुम् (sumṛdum) - very soft, exceedingly gentle

(adjective)

Accusative, masculine, singular of sumṛdu

sumṛdu - very soft, exceedingly gentle, extremely mild

Compound type : karmadhāraya (su+mṛdu)

• su – good, well, very, excellent
  indeclinable
• mṛdu – soft, gentle, mild, tender
  adjective

Note: Adjective modifying an implied noun, here used substantively meaning 'the very gentle one/thing'.

हन्ति (hanti) - overcomes, conquers (kills, strikes, destroys, overcomes)

(verb)

3rd person , singular, active, present (laṭ) of han

Root: han (class 2)

मृदुना (mṛdunā) - by softness, by gentleness, by a gentle one

(adjective)

Instrumental, singular of mṛdu

mṛdu - soft, gentle, mild, tender

Note: Used as an instrumental noun: 'by softness'.

हन्ति (hanti) - overcomes, conquers (kills, strikes, destroys, overcomes)

(verb)

3rd person , singular, active, present (laṭ) of han

Root: han (class 2)

दारुणम् (dāruṇam) - the harsh, the fierce (one) (harsh, fierce, cruel, severe)

(adjective)

Accusative, masculine, singular of dāruṇa

dāruṇa - harsh, fierce, cruel, severe, dreadful, violent

Note: Adjective used substantively, meaning 'the harsh one'.

न (na) - not (not, no, nor)

(indeclinable)

असाध्यम् (asādhyam) - unachievable, impossible to accomplish (unachievable, impossible, incurable)

(adjective)

Nominative, neuter, singular of asādhya

asādhya - unachievable, impossible, difficult to accomplish, incurable

`a` (negative prefix) + `sādhya` (to be accomplished)

Compound type : nañ-tatpuruṣa (a+sādhya)

• a – not, un-, without
  indeclinable
• sādhya – to be accomplished, achievable, curable, to be proved
  adjective
  Gerundive
  From root sādh + ya
  Root: sādh (class 4)

Note: Adjective agreeing with `kiṃcit` (something).

मृदुना (mṛdunā) - by softness, by gentleness, by a gentle one

(adjective)

Instrumental, singular of mṛdu

mṛdu - soft, gentle, mild, tender

Note: Used as an instrumental noun: 'by softness'.

किंचित् (kiṁcit) - anything (in a negative context, 'nothing') (something, anything, a little)

(indeclinable)

Note: Often acts as 'anything' or 'something'. In conjunction with `na`, it means 'nothing'.

तस्मात् (tasmāt) - therefore (therefore, from that, than that)

(pronoun)

Ablative, neuter, singular of tad

tad - that, he, she, it

Note: Often used adverbially to mean 'therefore' or 'from that cause'.

तीक्ष्णतरम् (tīkṣṇataram) - more potent, sharper (sharper, more pungent, more intense, more potent)

(adjective)

Nominative, neuter, singular of tīkṣṇatara

tīkṣṇatara - sharper, more pungent, more intense, more potent, more severe

comparative suffix `-tara` applied to `tīkṣṇa`

Note: Adjective agreeing with `mṛdu` (understood as neuter 'softness').

मृदु (mṛdu) - softness (as a concept) (soft, gentle, mild, tenderness, softness)

(noun)

Nominative, neuter, singular of mṛdu

mṛdu - soft, gentle, mild, tender, agreeable; also a noun meaning softness, gentleness

Note: Used here as a noun, the subject of the final clause.