The answer is: 1. Look over it quickly to get a sense of its contents.
Skimming a text is a reading technique in which one rapidly reads and goes over the contents of a text in order to get a general idea or sense of the contents of the text. Skimming is primarily used for the following purposes: to preview the contents of the text, to review texts that have already been read, to determine the general arguments of a text, or to determine if the text in question could be an actual resource for the writing of a research paper.
Sated is a word that we don't typically use in our modern English. If to translate it better for our understanding and "sated" was the closest word they could come up with, then it was most likely originally in old English.
