Mid 17th century; earliest use found in Thomas Browne (1605–1682), physician and author. From effect + -ible. Compare post-classical Latin effectibilis.
Definition of effectible in US English:
effectible
adjectiveɪˈfɛktəbl
Capable of being effected.
Origin
Mid 17th century; earliest use found in Thomas Browne (1605–1682), physician and author. From effect + -ible. Compare post-classical Latin effectibilis.