nitwit

n. someone who behaves stupidly. (Also a term of address.) Please stop acting like a nitwit all the time.

Name	Pronounced	Usage
AustĖJa	-	Lithuanian, Baltic Mythology
Roydon	ROI-dən	English (Rare)
EmÁNuel	-	Hungarian
Deodatus	-	Late Roman
Brynhild	-	Norwegian, Norse Mythology
Agnethe	-	Danish