महाभारतः mahābhārataḥ - book-8, chapter-6, verse-21

वृद्धौ च तौ महेष्वासौ सापेक्षौ च धनंजये ।
मानितौ च मया वीरौ राधेय वचनात्तव ॥२१॥

21. vṛddhau ca tau maheṣvāsau sāpekṣau ca dhanaṁjaye ,
mānitau ca mayā vīrau rādheya vacanāttava.

21. vṛddhau ca tau maheṣvāsau sāpekṣau ca dhanañjaye
mānitau ca mayā vīrau rādheya vacanāt tava

21. rādheya tau vṛddhau ca maheṣvāsau ca dhanañjaye
sāpekṣau vīrau ca mayā tava vacanāt mānitau

21. O Radheya, those two great archers were aged and also favorably inclined towards Dhananjaya (Arjuna). Moreover, those heroes were honored by me on your instruction.

Words meanings summery:

• वृद्धौ (vṛddhau) - aged (referring to Bhishma and Drona) (old, aged, grown)

• च (ca) - and, also

• तौ (tau) - those two (Bhishma and Drona) (those two)

• महेष्वासौ (maheṣvāsau) - great archers (referring to Bhishma and Drona) (great archers)

• सापेक्षौ (sāpekṣau) - favorably inclined (towards Dhananjaya) (partial, dependent, having regard for)

• च (ca) - and, also

• धनञ्जये (dhanañjaye) - towards Dhananjaya, towards Arjuna

• मानितौ (mānitau) - honored (referring to Bhishma and Drona) (honored, respected)

• च (ca) - and, also, furthermore

• मया (mayā) - by me

• वीरौ (vīrau) - heroes (referring to Bhishma and Drona) (heroes)

• राधेय (rādheya) - O Karna (O son of Radha)

• वचनात् (vacanāt) - on your instruction (from the word, by the instruction, on account of the speech)

• तव (tava) - your

Words meanings and morphology

वृद्धौ (vṛddhau) - aged (referring to Bhishma and Drona) (old, aged, grown)

(adjective)

Nominative, masculine, dual of vṛddha

vṛddha - old, aged, grown, increased

past passive participle

from root vṛdh (to grow, increase)

Root: vṛdh (class 1)

Note: Refers to Bhishma and Drona.

च (ca) - and, also

(indeclinable)

Note: Conjunction.

तौ (tau) - those two (Bhishma and Drona) (those two)

(pronoun)

Nominative, masculine, dual of tad

tad - that, those

Note: Refers to Bhishma and Drona.

महेष्वासौ (maheṣvāsau) - great archers (referring to Bhishma and Drona) (great archers)

(noun)

Nominative, masculine, dual of maheṣvāsa

maheṣvāsa - great archer, great bowman

Compound formed from mahat (great) and iṣvāsa (archer)

Compound type : karmadhāraya (mahat+iṣvāsa)

• mahat – great, large, mighty
  adjective (neuter)
• iṣvāsa – archer, bowman (literally 'arrow-thrower')
  noun (masculine)
  from root as (to throw) with iṣu (arrow)
  Root: as (class 4)

सापेक्षौ (sāpekṣau) - favorably inclined (towards Dhananjaya) (partial, dependent, having regard for)

(adjective)

Nominative, masculine, dual of sāpekṣa

sāpekṣa - having regard for, partial to, dependent, expectant

Compound formed from sa (with) and apekṣā (regard)

Compound type : bahuvrīhi (sa+apekṣā)

• sa – with, together with
  indeclinable
  prefix
• apekṣā – expectation, regard, dependence, partiality
  noun (feminine)
  from prefix api + root īkṣ (to see)
  Prefix: api
  Root: īkṣ (class 1)

Note: Refers to Bhishma and Drona.

च (ca) - and, also

(indeclinable)

Note: Connects 'vṛddhau' and 'sāpekṣau'.

धनञ्जये (dhanañjaye) - towards Dhananjaya, towards Arjuna

(proper noun)

Locative, masculine, singular of dhanañjaya

dhanañjaya - conqueror of wealth (epithet of Arjuna), fire

Compound meaning 'conqueror of wealth', from dhana (wealth) and jaya (victory/conqueror)

Compound type : upapada tatpuruṣa (dhana+jaya)

• dhana – wealth, riches
  noun (neuter)
• jaya – conquest, victory, conqueror
  noun (masculine)
  from root ji (to conquer)
  Root: ji (class 1)

Note: Denotes the object of partiality.

मानितौ (mānitau) - honored (referring to Bhishma and Drona) (honored, respected)

(adjective)

Nominative, masculine, dual of mānita

mānita - honored, respected, regarded

past passive participle

from root man (to think, believe, honor)

Root: man (class 4)

Note: Refers to Bhishma and Drona.

च (ca) - and, also, furthermore

(indeclinable)

Note: Connects this clause with the previous one.

मया (mayā) - by me

(pronoun)

Instrumental, singular of asmad

asmad - I, me

Note: Agent of passive verb 'mānitau'.

वीरौ (vīrau) - heroes (referring to Bhishma and Drona) (heroes)

(noun)

Nominative, masculine, dual of vīra

vīra - hero, brave man, warrior

Note: Apposition for Bhishma and Drona.

राधेय (rādheya) - O Karna (O son of Radha)

(proper noun)

Vocative, masculine, singular of rādheya

rādheya - son of Radha (Karna)

derived from Rādhā with -eya suffix, meaning 'descendant of'

Note: Addressing Karna.

वचनात् (vacanāt) - on your instruction (from the word, by the instruction, on account of the speech)

(noun)

Ablative, neuter, singular of vacana

vacana - speech, word, instruction

from root vac (to speak)

Root: vac (class 2)

Note: Denotes cause or source.

तव (tava) - your

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

Note: Possessive for 'vacanāt'.