-ance

-ance is an English noun suffix, sometimes also spelt -ence.

Added to an adjective or verb to form a noun indicating a state or condition, such as result or capacity, associated with the verb. ‎‎* ally + ‎-ance → ‎alliance ‎‎* perform + ‎-ance → ‎performance ‎* ‎reluctant + ‎-ance → ‎reluctance

Added to a verb to form a noun indicating a process or action. ‎* appear + ‎-ance → ‎appearance

• ‎resist + ‎-ance → ‎resistance

There may be final y substitution, e.g. ally --> alliance.