Definify.com
Webster 1913 Edition
Devisable
1.
Capable of being devised, invented, or contrived.
2.
Capable of being bequeathed, or given by will.
Webster 1828 Edition
Devisable
DEVISABLE
,Adj.
1.
That may be bequeathed or given by will.2.
That can be invented or contrived.