महाभारतः mahābhārataḥ - book-12, chapter-326, verse-90

समागतेषु बलिषु पृथिव्यां सर्वराजसु ।
वासविः सुसहायो वै मम ह्येको भविष्यति ॥९०॥

90. samāgateṣu baliṣu pṛthivyāṁ sarvarājasu ,
vāsaviḥ susahāyo vai mama hyeko bhaviṣyati.

90. samāgateṣu baliṣu pṛthivyām sarvarājasu
vāsaviḥ susahāyaḥ vai mama hi ekaḥ bhaviṣyati

90. pṛthivyām sarvarājasu baliṣu samāgateṣu
vāsaviḥ mama ekaḥ susahāyaḥ hi vai bhaviṣyati

90. When all the kings on earth have gathered, Vāsavi (Arjuna) will indeed be my one great helper.

Words meanings summery:

• समागतेषु (samāgateṣu) - when the kings have assembled (when assembled, when gathered)

• बलिषु (baliṣu) - among the powerful kings (among the powerful ones, among the tributes)

• पृथिव्याम् (pṛthivyām) - on the earth

• सर्वराजसु (sarvarājasu) - among all kings

• वासविः (vāsaviḥ) - Arjuna, son of Vasava (Indra) (son of Vasu, Arjuna)

• सुसहायः (susahāyaḥ) - a great helper, good assistant

• वै (vai) - indeed, certainly

• मम (mama) - my, of me

• हि (hi) - indeed, for, because

• एकः (ekaḥ) - one, alone, sole

• भविष्यति (bhaviṣyati) - will be, will happen

Words meanings and morphology

समागतेषु (samāgateṣu) - when the kings have assembled (when assembled, when gathered)

(adjective)

Locative, masculine, plural of samāgata

samāgata - assembled, gathered, arrived, met

Past Passive Participle

from root gam (to go) with prefixes sam and ā

Prefixes: sam+ā

Root: gam (class 1)

Note: Used in locative absolute construction

बलिषु (baliṣu) - among the powerful kings (among the powerful ones, among the tributes)

(noun)

Locative, masculine, plural of bali

bali - powerful one, warrior, tribute, offering, tax

Note: Used in locative absolute construction. In this context, refers to powerful warriors/kings.

पृथिव्याम् (pṛthivyām) - on the earth

(noun)

Locative, feminine, singular of pṛthivī

pṛthivī - earth, the Earth goddess

सर्वराजसु (sarvarājasu) - among all kings

(noun)

Locative, masculine, plural of sarvarāja

sarvarāja - all kings

Compound type : tatpurusha (sarva+rāja)

• sarva – all, every
  pronoun (masculine)
• rāja – king, ruler
  noun (masculine)

Note: Used in locative absolute construction

वासविः (vāsaviḥ) - Arjuna, son of Vasava (Indra) (son of Vasu, Arjuna)

(proper noun)

Nominative, masculine, singular of vāsavi

vāsavi - son of Vasu or Vasava (Indra), name of Arjuna

patronymic from Vasu/Vasava

Note: Refers to Arjuna.

सुसहायः (susahāyaḥ) - a great helper, good assistant

(noun)

Nominative, masculine, singular of susahāya

susahāya - a good friend, an excellent helper, a great assistant

Compound type : tatpurusha (su+sahāya)

• su – good, well, excellent
  prefix
• sahāya – helper, companion, friend
  noun (masculine)
  Root: hi (class 3)

वै (vai) - indeed, certainly

(indeclinable)

मम (mama) - my, of me

(pronoun)

Genitive, singular of mad

mad - I, me (pronoun)

हि (hi) - indeed, for, because

(indeclinable)

एकः (ekaḥ) - one, alone, sole

(numeral)

भविष्यति (bhaviṣyati) - will be, will happen

(verb)

3rd person , singular, active, future (lṛṭ) of bhū

Root: bhū (class 1)