महाभारतः mahābhārataḥ - book-12, chapter-200, verse-18

मरीचिः कश्यपं तात पुत्रं चासृजदग्रजम् ।
मानसं जनयामास तैजसं ब्रह्मसत्तमम् ॥१८॥

18. marīciḥ kaśyapaṁ tāta putraṁ cāsṛjadagrajam ,
mānasaṁ janayāmāsa taijasaṁ brahmasattamam.

18. marīciḥ kaśyapam tāta putram ca asṛjat agrajam
mānasam janayāmāsa taijasam brahmasattamam

18. tāta marīciḥ kaśyapam agrajam putram ca asṛjat
mānasaṃ taijasaṃ brahmasattamam janayāmāsa

18. O dear one, Marīci begot Kaśyapa, his elder son, causing him to be born as mind-born, brilliant, and the most excellent among Brahmins.

Words meanings summery:

• मरीचिः (marīciḥ) - Marīci (a sage, one of the Prajāpatis)

• कश्यपम् (kaśyapam) - Kaśyapa

• तात (tāta) - O dear one (used as an address) (dear one, father, son)

• पुत्रम् (putram) - son

• च (ca) - and, also

• असृजत् (asṛjat) - created, let loose, emitted

• अग्रजम् (agrajam) - elder, first-born, pre-eminent

• मानसम् (mānasam) - mental, mind-born, spiritual

• जनयामास (janayāmāsa) - caused to be born, begot, produced

• तैजसम् (taijasam) - luminous, brilliant, fiery, spirited

• ब्रह्मसत्तमम् (brahmasattamam) - best among Brahmins, most excellent spiritual person

Words meanings and morphology

मरीचिः (marīciḥ) - Marīci (a sage, one of the Prajāpatis)

(proper noun)

Nominative, masculine, singular of marīci

marīci - a ray of light, a sage, name of one of the Prajāpatis

कश्यपम् (kaśyapam) - Kaśyapa

(proper noun)

Accusative, masculine, singular of kaśyapa

kaśyapa - a tortoise; name of a celebrated Vedic sage and Prajāpati

तात (tāta) - O dear one (used as an address) (dear one, father, son)

(noun)

Vocative, masculine, singular of tāta

tāta - father, son, dear one (term of endearment or respect)

पुत्रम् (putram) - son

(noun)

Accusative, masculine, singular of putra

putra - son, child

च (ca) - and, also

(indeclinable)

असृजत् (asṛjat) - created, let loose, emitted

(verb)

3rd person , singular, active, imperfect (laṅ) of sṛj

Root: sṛj (class 6)

अग्रजम् (agrajam) - elder, first-born, pre-eminent

(adjective)

Accusative, masculine, singular of agraja

agraja - elder brother, first-born, born before

from agra (fore, front) + ja (born from √jan)

Compound type : tatpurusha (agra+ja)

• agra – front, top, point
  noun (neuter)
• ja – born, produced from
  adjective (masculine)
  from root jan
  Root: jan (class 4)

Note: Modifies Kaśyapa and son.

मानसम् (mānasam) - mental, mind-born, spiritual

(adjective)

Accusative, masculine, singular of mānasa

mānasa - mental, spiritual, belonging to the mind, mind-born

from manas (mind)

Note: Modifies Kaśyapa.

जनयामास (janayāmāsa) - caused to be born, begot, produced

(verb)

3rd person , singular, active, perfect (lit) of janay

causative

causative stem from root jan

Root: jan (class 4)

तैजसम् (taijasam) - luminous, brilliant, fiery, spirited

(adjective)

Accusative, masculine, singular of taijasa

taijasa - fiery, luminous, brilliant, energetic, spirited

from tejas (light, energy)

Note: Modifies Kaśyapa.

ब्रह्मसत्तमम् (brahmasattamam) - best among Brahmins, most excellent spiritual person

(adjective)

Accusative, masculine, singular of brahmasattama

brahmasattama - best among Brahmins, most excellent knower of Brahman or spiritual person

superlative compound of brahman (referring to a Brahmin) and sattama (best)

Compound type : tatpurusha (brahman+sattama)

• brahman – a member of the priestly class, a Brahmin
  noun (masculine)
• sattama – best, most excellent
  adjective (masculine)
  superlative of 'sat' (good, excellent)

Note: Modifies Kaśyapa.