'Manner' in the Bible

Then the king said to the wise men, who knew the times, (for so was the king's manner toward all that knew law and judgment;

Go, gather together all the Jews that are present in Shushan, and fast ye for me, and neither eat nor drink three days, night or day: I also and my maidens will fast in like manner; and so will I go in unto the king, which is not according to the law: and if I perish, I perish.