What is the origin of 'sleep tight'?
Read moreOne of the mysteries of the English language finally explained.
proper noun
Greek MythologyA name given to the Furies. The Eumenides probably originated as well-disposed deities of fertility, whose name was given to the Furies either by confusion or euphemistically.
Origin
Via Latin from Greek, from eumenēs ‘well disposed’, from eu ‘well’ + menos ‘spirit’.
