Past (7)
'past' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for bygone that I've seen before include "Former - well in the past" , "Olden (days)" , "Previous" , "Belonging to the past" , "Erstwhile" .)
'past' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for ago that I've seen before include "Time past" , "Back (in time)" , "(Years) before the present time" , "Earlier, gone by" , "Previously" .)
'past' is the definition.
(history is a kind of past)
This is all the clue.
(Other definitions for history that I've seen before include "Life story" , "Background" , "The record of past events" , "Chronicle" , "Time passed" .)