de·sert2 
(d

-zûrt

)
KEY NOUN:
- Something that is deserved or merited, especially a punishment. Often used in the plural: They got their just deserts when the scheme was finally uncovered.
- The state or fact of deserving reward or punishment.
ETYMOLOGY:Middle English, from Old French
deserte, from feminine past participle of
deservir,
to deserve ; see
deserveWORD HISTORY: When Shakespeare says in Sonnet 72, "Unless you would devise some virtuous lie,/To do more for me than mine own desert," he is using the word
desert in the sense of "worthiness; deserving," a word perhaps most familiar to us in the plural, meaning "something that is deserved," as in the phrase
just deserts. This word goes back to the Latin word
d
serv
re, "to devote oneself to the service of," which in Vulgar Latin came to mean "to merit by service."
D
serv
re is made up of
d
-, meaning "thoroughly," and
serv
re, "to serve." Knowing this, we can distinguish this
desert from
desert, "a wasteland," and
desert, "to abandon," both of which go back to Latin
d
serere, "to forsake, leave uninhabited," which is made up of
d
-, expressing the notion of undoing, and the verb
serere, "to link together." We can also distinguish all three
deserts from
dessert, "a sweet course at the end of a meal," which is from the French word
desservir, "to clear the table."
Desservir is made up of
des-, expressing the notion of reversal, and
servir (from Latin
serv
re), "to serve," hence, "to unserve" or "to clear the table."