This root is found in words like:
* Cynic: A person who believes that people are motivated by selfishness and are not sincere. This derives from the ancient Greek Cynics, who famously lived like dogs and rejected conventional societal norms.
* Canine: Relating to dogs.
* Cynophobia: Fear of dogs.
Interestingly, the word "dog" itself is derived from the Old English word "dogga", which comes from the Proto-Germanic word *duggō, ultimately tracing back to the Proto-Indo-European root *dʰewg- meaning "to suckle".
So, while the Latin root "cyn" focuses on the animal itself, the word "dog" has a more nuanced history related to its nursing behavior.