महाभारतः mahābhārataḥ - book-12, chapter-94, verse-21

दृढमूलस्त्वदुष्टात्मा विदित्वा बलमात्मनः ।
अबलानभियुञ्जीत न तु ये बलवत्तराः ॥२१॥

21. dṛḍhamūlastvaduṣṭātmā viditvā balamātmanaḥ ,
abalānabhiyuñjīta na tu ye balavattarāḥ.

21. dṛḍhamūlaḥ tu aduṣṭātmā viditvā balam ātmanaḥ
abalān abhiyuñjīta na tu ye balavattarāḥ

21. tu dṛḍhamūlaḥ aduṣṭātmā ātmanaḥ balam viditvā
abalān abhiyuñjīta tu ye balavattarāḥ na

21. However, a king who is firmly rooted and pure-minded (aduṣṭātmā), having ascertained his own strength, should engage with the weak, but not with those who are stronger.

Words meanings summery:

• दृढमूलः (dṛḍhamūlaḥ) - (a king) whose foundation is strong, stable (firmly rooted, strong-rooted)

• तु (tu) - introduces a contrast or emphasis (but, however, indeed)

• अदुष्टात्मा (aduṣṭātmā) - a king with integrity and pure intentions (one with an uncorrupted self, pure-minded, virtuous (ātman))

• विदित्वा (viditvā) - after knowing or assessing (having known, having ascertained)

• बलम् (balam) - strength, power

• आत्मनः (ātmanaḥ) - of oneself, one's own (ātman)

• अबलान् (abalān) - the weak ones, powerless ones

• अभियुञ्जीत (abhiyuñjīta) - the king should attack (one should attack, one should engage, one should direct (oneself))

• न (na) - not

• तु (tu) - but, on the other hand

• ये (ye) - those who

• बलवत्तराः (balavattarāḥ) - stronger, more powerful

Words meanings and morphology

दृढमूलः (dṛḍhamūlaḥ) - (a king) whose foundation is strong, stable (firmly rooted, strong-rooted)

(adjective)

Nominative, masculine, singular of dṛḍhamūla

dṛḍhamūla - firmly rooted, stable, firmly established

Compound type : bahuvrīhi (dṛḍha+mūla)

• dṛḍha – firm, strong, hard
  adjective (masculine)
  Past Passive Participle
  Derived from √dṛṃh (to make firm).
  Root: dṛṃh (class 1)
• mūla – root, basis, foundation
  noun (neuter)

Note: Qualifies the implied subject "king".

तु (tu) - introduces a contrast or emphasis (but, however, indeed)

(indeclinable)

अदुष्टात्मा (aduṣṭātmā) - a king with integrity and pure intentions (one with an uncorrupted self, pure-minded, virtuous (ātman))

(adjective)

Nominative, masculine, singular of aduṣṭātman

aduṣṭātman - having an uncorrupted self (ātman), virtuous, pure-minded

Compound type : bahuvrīhi (a+duṣṭa+ātman)

• a – not, un-
  indeclinable
• duṣṭa – corrupted, wicked, bad
  adjective (masculine)
  Past Passive Participle
  Derived from √duṣ (to be bad, corrupt).
  Root: duṣ (class 4)
• ātman – self (ātman), soul, mind, essence
  noun (masculine)

Note: Qualifies the implied subject "king".

विदित्वा (viditvā) - after knowing or assessing (having known, having ascertained)

(indeclinable)

Absolutive (gerund)

Derived from root `vid` (Class 2, `adādi`), forming an absolutive with suffix `-tvā`.

Root: vid (class 2)

Note: Precedes the main action `abhiyuñjīta`.

बलम् (balam) - strength, power

(noun)

Accusative, neuter, singular of bala

bala - strength, power, force

Note: Object of `viditvā`.

आत्मनः (ātmanaḥ) - of oneself, one's own (ātman)

(noun)

Genitive, masculine, singular of ātman

ātman - self (ātman), soul, mind, essence

Note: Possessive, modifies `balam`.

अबलान् (abalān) - the weak ones, powerless ones

(adjective)

Accusative, masculine, plural of abala

abala - weak, powerless, helpless

Compound type : nañ-tatpuruṣa (a+bala)

• a – not, un-
  indeclinable
• bala – strength, power
  noun (neuter)

Note: Object of `abhiyuñjīta`.

अभियुञ्जीत (abhiyuñjīta) - the king should attack (one should attack, one should engage, one should direct (oneself))

(verb)

3rd person , singular, middle, optative (vidhi liṅ) of yuj

Root `yuj` (Class 7, `rudhādi`), with prefix `abhi-`, third person singular Optative middle.

Prefix: abhi

Root: yuj (class 7)

Note: Subject is the implied king.

न (na) - not

(indeclinable)

Note: Negates the following clause.

तु (tu) - but, on the other hand

(indeclinable)

Note: Particle of contrast.

ये (ye) - those who

(pronoun)

Nominative, masculine, plural of yad

yad - who, which, what

Note: Subject of the implied verb "are" with `balavattarāḥ`.

बलवत्तराः (balavattarāḥ) - stronger, more powerful

(adjective)

Nominative, masculine, plural of balavattara

balavattara - stronger, more powerful (comparative degree)

Comparative degree of `balavat` (powerful).

Note: Predicate of `ye`.