Memento, keepsake (8)
I believe the answer is:
souvenir
I believe this is a double definition.
'memento' is the first definition.
(I know that memento can be written as souvenir)
'keepsake' is the second definition.
(I know that keepsake can be written as souvenir)
(Other definitions for souvenir that I've seen before include "remember seeing this?" , "Keepsake, memento" , "Reminder of past events" , "something worth keeping" , "Reminder of holiday" .)