What is the origin of 'sleep tight'?
Read moreOne of the mysteries of the English language finally explained.
Definition of morning flower in US English:
morning flower
noun
A plant of the Australian and tropical American genus Orthrosanthus (family Iridaceae), having clusters of blue or white flowers that open early in the morning and fade during the day.
Origin
Late 19th century; earliest use found in William Miller (c1831–1898).
