Modifiability(n.) Capability of being modified; state or quality of being modifiable.
Modifiable(a.) Capable of being modified; liable to modification.
Modified(imp. & p. p.) of Modify
Modifier(n.) One who, or that which, modifies.
Modify(v. t.) To change somewhat the form or qualities of; to alter somewhat; as, to modify a contrivance adapted to some mechanical purpose; to modify the terms of a contract.
Modify(v. t.) To limit or reduce in extent or degree; to moderate; to qualify; to lower.
Modifying(p. pr. & vb. n.) of Modify

Words within modifiable