term:

Kidnap

kidnap vt

kid·napped or: kid·naped [-napt]
kid·nap·ping or: kid·nap·ing [-na-pi]
[probably back-formation from kidnapper, from kid child + obsolete napper thief]
: to seize and confine or carry away by force or fraud and often with a demand for ransom
kid·nap·per
or
kid·nap·er
[-na-pər]

n