* Perambulator: This word comes from the Latin "perambulare," meaning "to walk about" or "to travel." It was first used in the 16th century to refer to a device used for measuring distances.
* Pram: The shortened form "pram" emerged in the 19th century, likely as a colloquial term for the baby carriage. It became increasingly popular and is now the standard word for a baby carriage in many English-speaking countries.
So, the journey of the word "pram" is a fascinating one: from measuring distances to describing a beloved baby carriage. It reflects how language evolves and adapts to new meanings and contexts.