aftermath: [16] Originally, and literally, an aftermath was a second crop of grass or similar grazing vegetation, grown after an earlier crop in the same season had been harvested. Already by the mid 17th century it had taken on the figurative connotations of ‘resulting condition’ which are today its only living sense. The -math element comes from Old English mǣth ‘mowing’, a noun descended from the Germanic base *mǣ, source of English mow. => mow
