SOUVENIR
keepsake, souvenir, token, relic
(noun) something of sentimental value
memento, souvenir
(noun) a reminder of past events
Source: WordNet® 3.1
Etymology
Noun
souvenir (plural souvenirs)
An item of sentimental value, to remember an event or location.
Synonyms: keepsake, memento, memorabilia
Verb
souvenir (third-person singular simple present souvenirs, present participle souveniring, simple past and past participle souvenired)
(transitive) To take (an article) as a souvenir, especially illicitly, for example during wartime.
Source: Wiktionary
Sou`ve*nir ( or ), n. Etym: [F., fr. souvenir to remember, fr. L.
subvenire to come up, come to mind; sub under + venire to come, akin
to E. come. See Come, and cf. Subvention.]
Definition: That which serves as a reminder; a remembrancer; a memento; a
keepsake.
Source: Webster’s Unabridged Dictionary 1913 Edition