American Heritage Dictionary of the English Language, 5th Edition
From Middle English mermayde (“maid of the sea"), from mere (“sea, lake") + maid, equivalent to mer- +"Ž maid. Compare Old English meremenn, meremennen, meremenin (“mermaid, siren").
Mermaid Sentence Examples
The " Mermaid " is sometimes described as in Bread Street, and at other times in Friday Street and also in Cheapside.
To his great surprise he found he had caught a beautiful mermaid.
What makes this fact still more certain is the circumstance that a haberdasher in Cheapside living "'twixt Wood Street and Milk Street," two streets on the north side opposite Bread and Friday Streets, described himself as " over against the Mermaid tavern in Cheapside."