lying-in
Word family
Synonym discussion
Sense: noun/1
All four words describe staying in bed later than usual, but they differ in form and region. 'Lying-in' is the formal noun form of the compound, most common in British English; it can also mean a protest or historical childbirth confinement, so context matters. 'Lie-in' (e.g., 'I had a lie-in') is the everyday British term and is far more frequent in conversation. 'Sleep-in' is common in both British and American English as a noun, though some speakers consider it slightly less traditional than 'lie-in'. 'Lay-in' is a rarer American variant. For example, a British speaker might say 'I'm looking forward to a lie-in on Saturday,' while an American would more naturally say 'I'm planning a sleep-in.'
Common collocations
Etymology
The noun 'lying-in' comes from the verb phrase 'lie in,' meaning to stay in bed, which dates from the 1400s. The specific childbirth sense emerged in the 1600s, based on the custom of a woman lying in bed during and after labour. By the 1800s, the word had also come to refer more broadly to any extended stay in bed, including sleeping late.
First known use
15th century
15th century, in the meaning defined above