Noah Webster
Involuntary
INVOL'UNTARY, adjective [Latin in and voluntarius. See Voluntary.]
1. Not having will or choice; unwilling.
2. Independent of will or choice. The motion of the heart and arteries is involuntary but not against the will.
3. Not proceeding from choice; not done willingly; opposed to the will. A slave and a conquered nation yield an involuntary submission to a master.