Bhagavad Gītā Chapter 1, Verse 40: Arjuna to Krishna — Arjuna-Viṣāda-Yoga

Bhagavad Gītā 1.40Chapter 1 · Arjuna-Viṣāda-Yoga · Arjuna → Krishna · anuṣṭubh
कुलक्षये प्रणश्यन्ति कुलधर्माः सनातनाः ।
धर्मे नष्टे कुलं कृत्स्नमधर्मो ऽभिभवत्युत ॥
kula← kula(12 verses)compound (compound member)family, lineage, clan-kṣaye← kṣaya(7 verses)locative masculine singular noundecay, destruction (from √kṣi) praṇaśyanti← pra-√ṇaś(6 verses)present indicative 3rd person plural verbto perish utterly (pra- + √naś) kula-dharmāḥ← dharma(27 verses)nominative masculine plural nounduty, law, righteousness; the principle of right action; one's own nature (sva-dharma) sanātanāḥ← sanātana(7 verses)nominative masculine plural nouneternal, perpetual; primeval (sanā 'always' + -tana)
dharme naṣṭe← √naś(7 verses)locative masculine singular participle nounto perish, be lost (verbal root) kulaṃ← kula(12 verses)accusative neuter singular nounfamily, lineage, clan kṛtsnam← kṛtsna(12 verses)accusative neuter singular nounwhole, entire, complete adha← adharma(5 verses)nominative masculine singular noununrighteousness (a- + dharma)rmo 'bhibhavaty uta← uta(3 verses)and, also, even
spokensingle-voice recital; rendered via IndicF5 conditioned on a Sanskrit reference clip
meaning

When the family line is destroyed, its ancient customs perish with it; and once dharma is lost, lawlessness overtakes the whole clan.