One verse

Srimad Bhagavatam 5.4.9

5.4.9

येषां खलु महायोगी भरतो ज्येष्ठ: श्रेष्ठगुण आसीद्येनेदं वर्षं भारतमिति व्यपदिशन्ति ॥ ९ ॥

yesam khalu maha-yogi bharato jyesthah srestha-guna asid yenedam varsam bharatam iti vyapadisanti.

yesam
of whom
khalu
indeed
maha-yogi
a very highly exalted devotee of the Lord
bharatah
Bharata
jyesthah
the eldest
srestha-gunah
qualified with the best attributes
asit
was
yena
by whom
idam
this
varsam
plane
bharatam
Bharata
iti
thus
vyapadisanti
people call.

Of Rsabhadeva’s one hundred sons, the eldest, named Bharata, was a great, exalted devotee qualified with the best attributes. In his honor, this plane has become known as Bharata-varsa.