ability

The word 'ability' entered English in the late 14th century from Old French 'ableté', which itself evolved from Latin 'habilitas', meaning "aptitude, skill". The Latin root is 'habilis', meaning "easily handled, apt", which derives from 'habere', "to have, hold". The core semantic journey is from the concrete notion of "having" or "holding" something, to the more abstract concept of possessing the necessary qualities or power. The suffix '-ity' systematically transforms the adjective 'able' into a noun denoting the state of being capable. Thus, the literal construction "state of being capable" perfectly captures the modern meaning of skill or power.

Structure: able (capable) + ity (state or condition) - able: From Latin '-abilis' (capable of, able to be), via Old French. In this word, it functions as the adjectival root meaning "having the capacity or power". - ity: From Latin '-itas', a suffix forming nouns denoting a state or condition. In this word, it functions as a noun-forming suffix.