Dessert

google

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mid 16th century: from French, past participle of desservir ‘clear the table’, from des- (expressing removal) + servir ‘to serve’.

wiktionary

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Borrowed from French dessert, from desservir(“disserve”), from dés-(“dis-”) and servir(“serve”), thus literally meaning “removal of what has been served”.

Note: It was erroneously suggested (e.g. in "Glucose syrups: Technology and Applications" (Peter Hull, 2010)) that the word is derived from the name of Benjamin Delessert, the inventor of beet sugar. However, the term predates him by at least a century.

etymonline

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dessert (n.)

"a service of fruits and sweets at the close of a meal," c. 1600, from French dessert (mid-16c.) "last course," literally "removal of what has been served," from desservir "clear the table," literally "un-serve," from des- "remove, undo" (see dis-) + Old French servir "to serve" (see serve (v.)). Dessert-wine is from 1733; dessert-spoon from 1776.