changeability

The word 'changeability' is a modern English formation built upon the well-established noun 'change', which entered English via Old French from the Late Latin verb cambiare, meaning to exchange or swap. The suffix '-ability' is a productive English morpheme derived from Latin -abilitas, which itself combines the adjectival suffix -abilis (expressing capability) with the abstract noun suffix -tas. When attached to the verb stem 'change', '-ability' systematically creates a noun denoting the state or quality of being capable of change. Thus, the literal construction "capacity for being altered" elegantly captures the modern abstract meaning of inconstancy or susceptibility to modification.

Structure: change (to alter) + ability (capacity or quality) - change: From Old French changier, from Late Latin cambiare (to exchange, barter), of Celtic origin. Functions as the core verb root. - ability: From Latin -abilitas, a suffix forming nouns of quality from adjectives ending in -abilis (able to be). Functions as a noun-forming suffix indicating a state or quality.