One of the mysteries of the English language finally explained.
1A person or animal that lays something again. Compare "re-lay"rare.
2Railways (originally and chiefly US). As a mass noun: a length of rail too worn for heavy usage but which is suitable for re-laying on a line with lighter traffic. Chiefly attributive, especially in "relayer rail". Now rare.
1Baseball. A fielder who acts as the middle player in a relay play.
2A person who participates in a relay race.
A person who or thing which relays something.
Mid 19th century. From re-lay + -er. Compare earlier layer<br>early 20th century; earliest use found in Eau Claire (Wisconsin) Leader. From relay + -er<br>1920s. From relay + -er. Compare French relayeur person in charge of a place for changing horses.
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