'appendence' originates from Latin, specifically from the verb 'appendere' (to hang upon, attach), built from the prefix 'ad-' (to, toward) + 'pendere' (to hang).

'appendence' passed into English via Late Latin/Medieval Latin forms such as 'appendentia' and through Middle English usage as 'appendence', eventually becoming the modern English noun 'appendence'.

Initially, it referred to the act or condition of being hung on or attached ('to hang upon'); over time it has come to mean primarily 'a thing appended' or 'an attached addition'.