[ 2 syll. bea-te, be-ate ] The baby boy name Beate is also used as a girl name. Its pronunciation is B EY-Tah- †. The origin of Beate is the Germanic language. The name's meaning is one who is serious.Bayahtah, Beahta, Beahtae, and Beatte are variants of Beate. Beate is not regularly used as a baby name for boys. It is not listed in the top 1000 names. 2 syll. bea-te, be-ate ] The baby boy name Beate is also used as a girl name. Its pronunciation is B EY-Tah- †. The origin of Beate is the Germanic language. The name's meaning is one who is serious.