party to

party to something

a participant in something; someone who is involved in something. I refuse to be a party to your dishonest plan!

Name	Pronounced	Usage
Benedita	-	Portuguese
ŠImon	-	Czech, Slovak
Katelynn	KAYT-lin	English (Modern)
Delilah	[di'lailə]
Miloslava	-	Czech, Medieval Slavic
Kyle	KIEL, KIE-əl	English