महाभारतः mahābhārataḥ - book-13, chapter-18, verse-21

अजरश्चामरश्चैव भविता दुःखवर्जितः ।
साम्यं समस्तु ते सौख्यं युवयोर्वर्धतां क्रतुः ॥२१॥

21. ajaraścāmaraścaiva bhavitā duḥkhavarjitaḥ ,
sāmyaṁ samastu te saukhyaṁ yuvayorvardhatāṁ kratuḥ.

21. ajaraḥ ca amaraḥ ca eva bhavitā duḥkhavarjitaḥ
sāmyam samastu te saukhyam yuvayoḥ vardhatām kratuḥ

21. tvam ajaraḥ ca amaraḥ ca eva duḥkhavarjitaḥ bhavitā
te saukhyam sāmyam samastu yuvayoḥ kratuḥ vardhatām

21. You will be undecaying, immortal, and free from sorrow. May your happiness be of equanimity, and may the (Vedic ritual) (kratu) of both of you prosper.

Words meanings summery:

• अजरः (ajaraḥ) - undecaying (undecaying, ageless)

• च (ca) - and

• अमरः (amaraḥ) - immortal (immortal, divine)

• च (ca) - and

• एव (eva) - indeed (indeed, just, only)

• भविता (bhavitā) - will be (will be, he/she/it will be)

• दुःखवर्जितः (duḥkhavarjitaḥ) - free from sorrow (free from sorrow, devoid of misery)

• साम्यम् (sāmyam) - equanimity (equality, equanimity, sameness)

• समस्तु (samastu) - let it be perfect (let it be complete, let it be perfect)

• ते (te) - your (to you, for you, your)

• सौख्यम् (saukhyam) - happiness (happiness, comfort, well-being)

• युवयोः (yuvayoḥ) - of both of you (of you two, for you two)

• वर्धताम् (vardhatām) - let it prosper (let it increase, let it grow, let it prosper)

• क्रतुः (kratuḥ) - (Vedic ritual) ((Vedic ritual), power, determination, intelligence)

Words meanings and morphology

अजरः (ajaraḥ) - undecaying (undecaying, ageless)

(adjective)

Nominative, masculine, singular of ajara

ajara - undecaying, ageless, eternal

Negative prefix 'a' + jara (decay/old age). From √jṝ (to wear out, decay).

Compound type : nañ-tatpuruṣa (a+jara)

• a – not, un-
  indeclinable
  Negative particle.
• jara – decay, old age
  noun (feminine)
  From √jṝ (to wear out).
  Root: jṝ (class 9)

च (ca) - and

(indeclinable)

Conjunction.

अमरः (amaraḥ) - immortal (immortal, divine)

(adjective)

Nominative, masculine, singular of amara

amara - immortal, god, divine being

Negative prefix 'a' + mara (mortal). From √mṛ (to die).

Compound type : nañ-tatpuruṣa (a+mara)

• a – not, un-
  indeclinable
  Negative particle.
• mara – death, dying
  noun (masculine)
  From √mṛ (to die).
  Root: mṛ (class 6)

च (ca) - and

(indeclinable)

Conjunction.

एव (eva) - indeed (indeed, just, only)

(indeclinable)

Emphatic particle.

भविता (bhavitā) - will be (will be, he/she/it will be)

(verb)

3rd person , singular, active, future (periphrastic) (luṭ) of bhū

Periphrastic Future

Third person singular, periphrastic future.

Root: bhū (class 1)

दुःखवर्जितः (duḥkhavarjitaḥ) - free from sorrow (free from sorrow, devoid of misery)

(adjective)

Nominative, masculine, singular of duḥkhavarjita

duḥkhavarjita - free from sorrow, devoid of misery

Compound of `duḥkha` (sorrow) + `varjita` (abandoned, excluded, free from). `varjita` is PPP of √vṛj (to avoid, abandon).

Compound type : tatpurusha (duḥkha+varjita)

• duḥkha – sorrow, pain, misery, unhappiness
  noun (neuter)
• varjita – abandoned, excluded, avoided, free from
  adjective (masculine)
  Past Passive Participle
  From √vṛj (to avoid, abandon).
  Root: vṛj (class 7)

Note: Functions as a predicate adjective with `bhavitā`.

साम्यम् (sāmyam) - equanimity (equality, equanimity, sameness)

(noun)

Nominative, neuter, singular of sāmya

sāmya - equality, likeness, sameness, equanimity

From sama (equal, same) + ṣyañ suffix.

समस्तु (samastu) - let it be perfect (let it be complete, let it be perfect)

(verb)

3rd person , singular, active, imperative (loṭ) of sam-as

Imperative

Third person singular imperative, parasmaipada, from √as with sam prefix for completeness.

Prefix: sam

Root: as (class 2)

Note: The subject is `sāmyam`.

ते (te) - your (to you, for you, your)

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

Second person pronoun.

Note: Adjective to `saukhyam`.

सौख्यम् (saukhyam) - happiness (happiness, comfort, well-being)

(noun)

Nominative, neuter, singular of saukhya

saukhya - happiness, comfort, well-being, pleasure

From sukha (ease, pleasure) + ṣyañ suffix.

Note: Subject of `samastu` (understood as part of the blessing).

युवयोः (yuvayoḥ) - of both of you (of you two, for you two)

(pronoun)

Genitive, dual of yuṣmad

yuṣmad - you (dual)

Second person pronoun, dual form.

Note: Adjective to `kratuḥ`.

वर्धताम् (vardhatām) - let it prosper (let it increase, let it grow, let it prosper)

(verb)

3rd person , singular, middle, imperative (loṭ) of vṛdh

Imperative

Third person singular imperative, ātmanepada.

Root: vṛdh (class 1)

क्रतुः (kratuḥ) - (Vedic ritual) ((Vedic ritual), power, determination, intelligence)

(noun)

Nominative, masculine, singular of kratu

kratu - power, determination, intelligence, (Vedic ritual)

From √kṛ (to do, make).

Root: kṛ (class 8)

Note: Subject of `vardhatām`. Refers to the sacred ritual or resolve.