I'm hanged if I know!

I have absolutely no idea! I'm hanged if I know how to fill out these tax forms!

Name	Pronounced	Usage
NguyỆT	-	Vietnamese
Valarie	VAL-ə-ree	English
Diamond	DIE-mənd	English (Modern)
Joye	JOI	English
EglĖ	-	Lithuanian
Odovacar	o-do-VAY-kər (English)	Ancient Germanic