The Oxford English Dictionary has added “jim-jams”, a humorous colloquial term for pyjamas, and credited Scottish novelist Isabel Cameron with popularising it. Researchers found the earliest known printed use in Cameron’s 1957 novel *Mossford Manse*, in which a character says, “I’ll get Teddy and my jim-jams.”

Cameron wrote several novels about life in the Highlands during the early to mid-20th century; *Mossford Manse* was her last, published shortly before she died aged 84 in November 1957. “Jim-jams” is among more than 400 words, phrases and senses in the OED’s latest update, which also includes Scottish food terms “chippy sauce” and “rowie”.