IPA: /ˈdɒɡˌnæpə/
KK: /ˈdɔgˌnæpər/
A person who steals dogs, often for profit or illegal purposes.
The police are searching for the dognapper who took my neighbor's dog.
Dognapper → It is formed from "dog" (from Old English *docga*, meaning a type of dog) and "napper" (from the verb "to nap", meaning to steal). The word "dognapper" refers to someone who steals dogs.
Think of someone who 'steals' ('napper') a 'dog' — that's why a dognapper is someone who takes dogs away.