kəˈd(y)üsəd.ē noun
( -es )
Etymology: French caducité, from caduc falling, decrepit (from Latin caducus ) + French -ité -ity
1. : perishableness , transitoriness
2.
a. : feebleness from age : senility
b. : old age
the housebound old man … in his peaceable caducity — Christopher Morley
3. : lapse
the caducity of a legacy
the caducity of a treaty may also be declared when … the causes which originated it have disappeared — Havana Convention on Treaties