KILLJOY

PRONUNCIATION: (KIL-joi)

MEANING: noun: One who spoils the enjoyment of others.

ETYMOLOGY: Perhaps from Old English cyllan (to kill) + Old French joie/joye (joy), from Latin gaudium (joy), from gaudere (rejoice). Earliest documented use: 1776.
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ILLJOY - hypochondria

KILOJOY - a whole lot of uppers

KRILLJOY - a post-prandial baleen whale