For your blogging/poetry needs, from one online source:
blurred, burd, byrd, curd, ferd, gerd, gird, gjerde, heard, herd, hird, hurd, jerde, kurd, leard, nerd, slurred, spurred, stirred, third, word
Missing of course: a slang term for feces. And what about purred?
The Brown and Peruvian Pelicans
5 hours ago