Meaning a person of high rank or distinction is attested from c.1500 in English; as a longer way to say person, the word was in use from 1550s (but often slyly ironical, with suggestion that the subject is overly self-important).
If your system is standalone, the default sync interval for system time is 604800 seconds (7 days). If you are in a domain environment, the default sync interval is 3600 seconds (0.04166667 days). If you are using XP Pro, you can adjust your settings using Group Policy editor (GPedit - Administrative Templates\System\Windows Time Service\Time Providers) or you can adjust things through a registry edit (works for any version of XP).
I have an ADR set up and is set to run every time a sync occurs. The sync schedule is set to run every 6 hours (so 4 times per day). Definitions were updating just fine about 3 days ago, but now they do not seem to be updating at all now. The ADR shows success and the last run time was today.