if one knows what's good for one

Fig. one had better do what is expected of one. You'd better be on time if you know what's good for you. If you know what's good for you, you'll call and apologize.

Common Names:

Name	Pronounced	Usage
Orion	o-RIE-ən (English)	Greek Mythology
Gwydion	-	Welsh Mythology
Caradoc	-	Welsh
Nazario	nah-TSAH-ryo (Italian), nah-THAH-ryo (Spanish), nah-SAH-ryo (Latin American Spanish)	Italian, Spanish
Keanu	-	Hawaiian
Velvela	-	Yiddish