The Collaborative International Dictionary of English v.0.48:
Kidnap \Kid"nap`\ (k[i^]d"n[a^]p`), v. t. [imp. & p. p.
Kidnaped (k[i^]d"n[a^]pt`) or Kidnapped; p. pr. & vb. n.
Kidnaping or Kidnapping.] [Kid a child + Prov. E. nap to
seize, to grasp. Cf. Knab, Knap, Nab.]
To take (any one) by force or fear, and against one's will,
with intent to carry to another place. --Abbott.
You may reason or expostulate with the parents, but
never attempt to kidnap their children, and to make
proselytes of them. --Whately.
Note: Originally used only of stealing children, but now
extended in application to any human being,
involuntarily abducted. Kidnaper