महाभारतः mahābhārataḥ - book-12, chapter-49, verse-44

ततः पितृवधामर्षाद्रामः परममन्युमान् ।
निःक्षत्रियां प्रतिश्रुत्य महीं शस्त्रमगृह्णत ॥४४॥

44. tataḥ pitṛvadhāmarṣādrāmaḥ paramamanyumān ,
niḥkṣatriyāṁ pratiśrutya mahīṁ śastramagṛhṇata.

44. tataḥ pitṛvadhāmarṣāt rāmaḥ paramamanyumān
niḥkṣatriyām pratiśrutya mahīm śastram agṛhṇata

44. tataḥ pitṛvadhāmarṣāt paramamanyumān rāmaḥ
mahīm niḥkṣatriyām pratiśrutya śastram agṛhṇata

44. Consequently, enraged by the murder of his father, Rama, filled with immense fury, vowed to rid the earth of all kshatriyas and then took up his weapon.

Words meanings summery:

• ततः (tataḥ) - then, therefrom, afterwards, consequently

• पितृवधामर्षात् (pitṛvadhāmarṣāt) - from the anger at his father's murder

• रामः (rāmaḥ) - Parasurama (Rama)

• परममन्युमान् (paramamanyumān) - extremely wrathful, full of great wrath

• निःक्षत्रियाम् (niḥkṣatriyām) - devoid of kshatriyas, free from kshatriyas

• प्रतिश्रुत्य (pratiśrutya) - having promised, having sworn, having vowed

• महीम् (mahīm) - the earth, the land

• शस्त्रम् (śastram) - weapon, sword

• अगृह्णत (agṛhṇata) - he took, he grasped, he seized

Words meanings and morphology

ततः (tataḥ) - then, therefrom, afterwards, consequently

(indeclinable)

Adverbial form of tad (that)

पितृवधामर्षात् (pitṛvadhāmarṣāt) - from the anger at his father's murder

(noun)

Ablative, masculine, singular of pitṛvadhāmarṣa

pitṛvadhāmarṣa - anger due to father's murder

Compound type : tatpurusha (pitṛ+vadha+amarṣa)

• pitṛ – father
  noun (masculine)
• vadha – murder, slaying, killing
  noun (masculine)
  From root vadh (to strike, kill)
  Root: vadh (class 1)
• amarṣa – anger, indignation, impatience
  noun (masculine)
  From a- + root mṛṣ (to bear, tolerate)
  Prefix: a
  Root: mṛṣ (class 1)

रामः (rāmaḥ) - Parasurama (Rama)

(proper noun)

Nominative, masculine, singular of rāma

rāma - Rama (a proper name)

परममन्युमान् (paramamanyumān) - extremely wrathful, full of great wrath

(adjective)

Nominative, masculine, singular of paramamanyumat

paramamanyumat - one possessing great wrath

Possessive adjective from paramamanyu + matup suffix.

Compound type : tatpurusha (parama+manyu)

• parama – highest, supreme, greatest, extreme
  adjective
• manyu – wrath, anger, fury, spirit
  noun (masculine)
  From root man (to think, perceive)
  Root: man (class 4)

निःक्षत्रियाम् (niḥkṣatriyām) - devoid of kshatriyas, free from kshatriyas

(adjective)

Accusative, feminine, singular of niḥkṣatriya

niḥkṣatriya - having no kshatriyas, rid of kshatriyas

From nis- + kṣatriya. A privative compound.

Compound type : bahuvrihi (nis+kṣatriya)

• nis – without, out, devoid of
  indeclinable
• kṣatriya – a member of the warrior or ruling class
  noun (masculine)

प्रतिश्रुत्य (pratiśrutya) - having promised, having sworn, having vowed

(indeclinable)

Gerund (absolutive)

From prati-śru (to promise, assent) + lyap suffix.

Prefix: prati

Root: śru (class 5)

महीम् (mahīm) - the earth, the land

(noun)

Accusative, feminine, singular of mahī

mahī - earth, ground, land

शस्त्रम् (śastram) - weapon, sword

(noun)

Accusative, neuter, singular of śastra

śastra - weapon, instrument, sword

From root śas (to cut, kill)

Root: śas (class 2)

अगृह्णत (agṛhṇata) - he took, he grasped, he seized

(verb)

3rd person , singular, middle, imperfect (laṅ) of grah

Imperfect, middle voice

Root grah (9th class), imperfect 3rd singular middle.

Root: grah (class 9)