from σπείρω; something sown, i.e. seed (including the male "sperm"); by implication, offspring; specially, a remnant (figuratively, as if kept over for planting):--issue, seed.
middle voice from ἐπί and λαμβάνω; to seize (for help, injury, attainment, or any other purpose; literally or figuratively):--catch, lay hold (up-)on, take (by, hold of, on).