What is the meaning of -ance?

Added to an adjective or verb to form a noun indicating a state or condition, such as result or capacity, associated with the verb.

Added to a verb to form a noun indicating a process or action.

-ance; forms abstract nouns

Alternative form of -aunce

-ance (suffixed used to form nouns)

Forms nouns indicating states or processes, usually from verbs or other nouns;

Suffix appended to words to create a neuter noun, usually to form a diminutive or as an expression of endearment, or to denote an object.

Source: wiktionary.org

See also