cur

noun3

1. •
   (humorous, old-fashioned) A contemptible or inferior dog.

   • A fals double tunge is more fiers and fell Then Cerberus the cur couching in the kenel of hel; Wherof hereafter, I thinke for to write, — 1515
2. •
   (humorous, old-fashioned) A detestable person.

   • This butcher's cur is venom-mouth'd, and I have not the power to muzzle him. — 1613
3. •
   (dialect, no longer used) A sheepdog or watchdog.

   • "He's a good sharp cur," or "a good cur," is said of any dog that barks at strangers and guards his master's property. — 1884