English word overjoyed comes from English overjoy, German über- (Über-, over-, super-, supra-, preter-, meta-.), German freut

Detailed word origin of overjoyed

Dictionary entry	Language	Definition
overjoy	English (eng)	Very great joy; ecstasy. To give great joy, delight or pleasure to.
über-	German (deu)	Über-, over-, super-, supra-, preter-, meta-.
freut	German (deu)
overjoyed	English (eng)	Very happy.