What is "timeskip"

A timeskip is a narrative device that is commonly used in the telling of epics or sagas. It allows the storyteller to quickly age characters or develop events without getting bogged down in irrelevant or uninteresting details. Though time is commonly fast-forwarded in small amounts, timeskips usually refer to periods of several years or decades, wherein a pronounced change can be measured against the same characters, such as a child becoming an adult.