Souvenir

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late 18th century: from French, from souvenir ‘remember’, from Latin subvenire ‘occur to the mind’.

wiktionary

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From French souvenir(literally “memory”); compare memento.

etymonline

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souvenir (n.)

1775, "a remembrance or memory," from French souvenir (12c.), from Old French noun use of souvenir (v.) "to remember, come to mind," from Latin subvenire "come to mind," from sub "up from below" (see sub-) + venire "to come," from a suffixed form of PIE root *gwa- "to go, come." Meaning "token of remembrance, memento" is first recorded 1782.