gone-by
/ˌɡɒnˈbʌɪ/adjective
= bygone; especially past, over and done with, former.
noun
A person who or thing which has gone by; = bygone. Now rare.
Origin
Mid 18th century; earliest use found in David Garrick (1717–1779), actor and playwright. From gone, past participle of go + by, after to go by.