collective name for free-swimming aquatic creatures, 1893, from German nekton (van Heusen, 1890), from Greek nekton, neuter of nektos "swimming," from nekhein "to swim" (from PIE root *sna- "to swim"). Compare plankton.
neighbour
neighbourhood
Neil
neither
*nek-
nekton
Nelly
nelson
*nem-
nem. con.
nemato-