You're most likely thinking of the word kudos which refers to a praise and honor given for achieving something; it's a kind of prestige.
Upon successful completion of an important task the leader of the effort might say "Kudos to everyone for a job well done!"
The word “kudos” comes from the Greek κῦδος (kudos), meaning “glory” or “fame”.
Kudos is one of those words like congeries that look like plurals but are etymologically singular. The “-os” ending in Greek typically indicates a singular noun and is supposed to be pronounced like “-ose”.
But kudos has often been treated as a plural, especially in the popular press. Used largely in university circles, it became popular among journalists in the 1920s, esp. for headlines: Playwright receives kudos.
Because such contexts often do not reveal whether the term is singular or plural, and because the word ends in -s, the usual marker of the English plural, kudos eventually came to be treated as a plural meaning “accolades.”
Many English language words come from ancient Greek. See a list of English words with Greek origin at BrightHubEducation.com and EnhanceMyVocabulary.com.