Etymology: (1400–50; late ME < MF, OF desbarrer to lock out, bar. See de -, bar1)
Definition of 'debar'
Princeton's WordNet
1. (verb)suspend, debar bar temporarily; from school, office, etc.
2. (verb)debar, forefend, forfend, obviate, deflect, avert, head off, stave off, fend off, avoid, ward off prevent the occurrence of; prevent from happening "Let's avoid a confrontation"; "head off a confrontation"; "avert a strike"
3. (verb)bar, debar, exclude prevent from entering; keep out "He was barred from membership in the club"
Definition of 'debar'
Webster Dictionary
1. (verb)debar to cut off from entrance, as if by a bar or barrier; to preclude; to hinder from approach, entry, or enjoyment; to shut out or exclude; to deny or refuse; -- with from, and sometimes with of
Definitions of debar 
