כָּאַב

From LSJ

ἅλμην πιόντες ἐξαπῆλθον τοῦ βίου → they drank seawater and departed from life

Source

English (Strong)

a primitive root; properly, to feel pain; by implication, to grieve; figuratively, to spoil: grieving, mar, have pain, make sad (sore), (be) sorrowful.