To beget means to generate something, usually children, and it can be used to refer to the role of either a mother or a father.
If we analyze the word beget, we get the prefix be-, which tends to intensify the meaning of the following verb, and get, which means to cause something to enter one's possession. The word is usually used to refer to having children, although it can be used to refer to anything that generates something else — for example, an inspiration can beget a brilliant idea.
