महाभारतः mahābhārataḥ - book-7, chapter-50, verse-31

कृतज्ञं ज्ञानसंपन्नं कृतास्त्रमनिवर्तिनम् ।
युद्धाभिनन्दिनं नित्यं द्विषतामघवर्धनम् ॥३१॥

31. kṛtajñaṁ jñānasaṁpannaṁ kṛtāstramanivartinam ,
yuddhābhinandinaṁ nityaṁ dviṣatāmaghavardhanam.

31. kṛtajñam jñānasaṃpannnam kṛtāstram anivartinam
yuddhābhinandinam nityam dviṣatām aghavardhanam

31. kṛtajñam jñānasaṃpannnam kṛtāstram anivartinam
nityam yuddhābhinandinam dviṣatām aghavardhanam

31. Grateful, endowed with knowledge, skilled in weaponry, never retreating, constantly delighting in battle, and one who amplifies the woes of his enemies.

Words meanings summery:

• कृतज्ञम् (kṛtajñam) - grateful, knowing what has been done, appreciative

• ज्ञानसंपन्न्नम् (jñānasaṁpannnam) - endowed with knowledge, rich in wisdom

• कृतास्त्रम् (kṛtāstram) - skilled in the use of weapons (astras)

• अनिवर्तिनम् (anivartinam) - not retreating, never turning back

• युद्धाभिनन्दिनम् (yuddhābhinandinam) - delighting in battle, enjoying warfare

• नित्यम् (nityam) - always, constantly, perpetually

• द्विषताम् (dviṣatām) - of enemies, of those who hate

• अघवर्धनम् (aghavardhanam) - increasing the misfortune/sin/evil of

Words meanings and morphology

कृतज्ञम् (kṛtajñam) - grateful, knowing what has been done, appreciative

(adjective)

Accusative, masculine, singular of kṛtajña

kṛtajña - grateful, knowing what has been done, appreciative

Compound type : tatpurusha (kṛta+jña)

• kṛta – done, made
  adjective (masculine)
  Past Passive Participle
  Derived from root 'kṛ' (to do)
  Root: kṛ (class 8)
• jña – knowing, acquainted with
  adjective (masculine)
  Derived from root 'jñā' (to know)
  Root: jñā (class 9)

ज्ञानसंपन्न्नम् (jñānasaṁpannnam) - endowed with knowledge, rich in wisdom

(adjective)

Accusative, masculine, singular of jñānasaṃpanna

jñānasaṁpanna - endowed with knowledge, rich in wisdom

Compound type : tatpurusha (jñāna+saṃpanna)

• jñāna – knowledge, wisdom
  noun (neuter)
  Root: jñā (class 9)
• saṃpanna – endowed with, furnished with, possessed of
  adjective (masculine)
  Past Passive Participle
  Derived from root 'pad' (to go, fall) with upasarga 'sam'
  Prefix: sam
  Root: pad (class 4)

कृतास्त्रम् (kṛtāstram) - skilled in the use of weapons (astras)

(adjective)

Accusative, masculine, singular of kṛtāstra

kṛtāstra - skilled in the use of weapons, one who has practised with weapons

Compound type : bahuvrīhi (kṛta+astra)

• kṛta – done, made, practised
  adjective (masculine)
  Past Passive Participle
  Derived from root 'kṛ' (to do)
  Root: kṛ (class 8)
• astra – weapon, missile
  noun (neuter)
  Root: as (class 4)

अनिवर्तिनम् (anivartinam) - not retreating, never turning back

(adjective)

Accusative, masculine, singular of anivartin

anivartin - not retreating, never turning back, steady

Compound type : nañ-tatpuruṣa (a+nivartin)

• a – not, non-
  indeclinable
• nivartin – one who turns back, retreating
  adjective (masculine)
  Agent noun from root 'vṛt' (to turn) with upasarga 'ni'
  Prefix: ni
  Root: vṛt (class 1)

युद्धाभिनन्दिनम् (yuddhābhinandinam) - delighting in battle, enjoying warfare

(adjective)

Accusative, masculine, singular of yuddhābhinandin

yuddhābhinandin - delighting in battle, enjoying warfare

Compound type : tatpurusha (yuddha+abhinandin)

• yuddha – battle, fight, war
  noun (neuter)
  Past Passive Participle
  Derived from root 'yudh' (to fight)
  Root: yudh (class 4)
• abhinandin – rejoicing, delighting in
  adjective (masculine)
  Agent noun from root 'nand' (to rejoice) with upasarga 'abhi'
  Prefix: abhi
  Root: nand (class 1)

नित्यम् (nityam) - always, constantly, perpetually

(indeclinable)

द्विषताम् (dviṣatām) - of enemies, of those who hate

(noun)

Genitive, plural of dviṣat

dviṣat - hating, hostile, an enemy

Present Active Participle

Derived from root 'dviṣ' (to hate)

Root: dviṣ (class 2)

अघवर्धनम् (aghavardhanam) - increasing the misfortune/sin/evil of

(adjective)

Accusative, masculine, singular of aghavardhana

aghavardhana - increasing sin, augmenting misfortune

Compound type : tatpurusha (agha+vardhana)

• agha – evil, sin, misfortune, distress
  noun (neuter)
• vardhana – increasing, growing, causing to grow
  adjective (masculine)
  Derived from root 'vṛdh' (to grow, increase)
  Root: vṛdh (class 1)