memento
noun
[ mɪˈmɛntəʊ ]
• an object kept as a reminder of a person or event.
• "you can purchase a memento of your visit"
Similar:
souvenir,
keepsake,
reminder,
remembrance,
token,
memorial,
testimonial,
trophy,
relic,
vestige,
memorandum,
Origin:
late Middle English (denoting a prayer of commemoration): from Latin, literally ‘remember!’, imperative of meminisse .