Would a 219 year old Dunmer be considered elderly or just advlt? Would they be getting grey hair by then?

advlt. I saved this from a topic I made over here some time ago when I was doing research on the Dunmer, it's more or less the same for all mer:

Elderly if not a magic user.

Also, Chaka ZG, child bearing actually seems to occur at ~16-18, if The Real Barenziah is accurate. Furthermore, most mer go till 150-200 as peasants (Anvil smith, Skeleton Man Interview, and I think a few other sources), more if they're wealthy or a talented enough magic user (Barenziah got to ~400 years), and exponentially long if they're really good at magic (see Tellvanni magisters and Psijics)

EDIT: Clarification, meant Telvanni magisters for the +400 level. There is a vast power (and wealth) gap between regular members and the upper tier guys.

For a Telvanni a 200 year old would be a considered a child.

What about Ashlanders?

probably around that of a peasant's lifespan, so...in the 200 area.

Yeah... Dunmer don't live to 1,000 very often... in fact we have no record of any non-mages living that long. Even royalty (Barenziah) was considered elderly in her mid 400s. As others have said, there is a source that has a discussion/interview with a Dunmer peasant about his lifespan. He estimated he would be venerable at 200 or so.

Senise Thindo is "a mere child of two hundred years" - Neloth (Elder Scrolls III: Morrowind).

Keep in mind that this probably would be the case for the majority of Telvanni however. Most Telvanni are probably of a similar age, only to a member like Neloth who is probably one of their oldest would someone of two hundred years be looked upon as a child.

All the magisters in Vvardenfell were 500ish (that one Telvanni guy who helped out the nerevarine) to 1000 (Therana). Though, it should be noted that the 500 year old guy was seen as a brash young upstart amongst his magister peers.

There's a Dunmer in Skyrim (I'll edit with the exact location you can find this guy) that when you ask about the nearby mine, he says "I've only been here a year or two, but I've been mining for over a century."

I'd guess that mining would be a lower-class, even peasants job, and yet he's been doing it for a century might suggest that even the poorer Dunmer live for quite a long time. unless this is another lore inconsistency...

Or there's a bit of exaggeration. Then again, say he started at an age when he is deemed healthy and young enough to start working. So, for the sake of this, we'll say he started at 16. That'd mean he is ~116 years old, which is still within the lifespan a peasant would live.

I'd like to see some sources for that because I've certainly never seen anything that states an exact or approximate figure for any of the Telvanni's ages except Senise Thindo and Divayth Fyr.

• Fast Eddie describes Gothren and Dratha as "barely living".
• Aryon's coded message to Fyr says: "Even Gothren and Neloth must admit that you are older and wiser and in every way superior to them in the arcane arts".
• Aryon states that Dratha is "the oldest living Telvanni Councilor".
• Dratha has "been a Telvanni councilor since they invented dirt".
• Baladas Demnevanni calls Aryon "young".
• Aryon is the youngest and newest councillor.
• Gothren has been Archmagister for a long time, but not longer than Ranis Athrys is old since the previous archmagister killed her parents.

Not really anything else about the ages of the various Telvanni members except various people using words like "ageless" and "ancient" when talking about the Telvanni.

I strongly believe that Councilor's and some other prominent member of House Telvanni are over five hundred years old, a thousand... or more. But there is nothing concrete to say that they are.