quick question please!

I recently came across some information on the temple of Mars Lenus at
Trier. It is also mentioned under the names Irminwingert and
Irminenwingert.
Does anyone have any possible translations for those terms? I have
found a website that suggest wingert = vineyard, but I'm not sure that
really makes sense. Any help would be appreciated.

Thanks in advance!
-Aydan