Type Word Usage Old Germanic (Hypothetical) Meaning & History Germanic word meaning "beam, tree" [1]. Related ItemsDetails Other Languages & Culturesbom(Old Dutch) boum(Old High German) Surname DescendantsBeumer, Beumers, Verboom(Dutch) Baum, Baumer(German) Baum(Jewish) Sources & References Kroonen, Guus. Etymological Dictionary of Proto-Germanic. Brill, 2013, page 47.