Vietnamese sấm

← Bahnar grơ̆m (cognate)

← Khmer គ្រុម (cognate)

← Proto-Mon-Khmer *grəm(ʔ) (inherited)

← Proto-Mon-Khmer *gram() (mention)

← Proto-Vietic *k-rǝmʔ (inherited)

← Pacoh crứm (cognate)

← Tho - (cognate)

← Vietnamese chớp (link)

← Vietnamese sét (link)