Bhagavad Gita, Chapter 1, Verse 43

दोषैरेतैः कुलघ्नानां वर्णसङ्करकारकैः । उत्साद्यन्ते जातिधर्माः कुलधर्माश्च शाश्वताः

doṣairetaiḥ kulaghnānāṃ varṇasaṅkarakārakaiḥ | utsādyante jātidharmāḥ kuladharmāśca śāśvatāḥ

Translation

By these evil deeds of the destroyers of families which cause the intermingling of castes, the eternal dharmas of castes and families are subverted.

— Alladi Mahadeva Sastri

Word meanings

doṣaiḥ
by sins
etaiḥ
(by) these
kulaghnānām
of the family-slayers
varṇasaṅkarakārakaiḥ
of caste, of the confusion, by the doers
utsādyante
are destroyed
jātidharmāḥ
of the caste, customs
kuladharmāḥ
of the family, customs
ca
and
śāśvatāḥ
everlasting