I wonder whether we could say things like:

DaSjaj'e' maSuv

on *monday* we fight

Meaning of all the days of the week, monday is the day we'll fight.

Would you use it? Does anyone see anything against it?

Personally I see no problem, since {DaSjaj} is a noun to begin with, and there's no rule prohibiting the placement of the emphatic {-'e'} on a noun acting as a time stamp.

I can think of no objection to it. If I were fishing for an objection, I might suggest that using a type 5 noun suffix gives a syntactic role to a noun, but the syntactic role of a time expression comes from its placement alone. Of course, you can also add -'e' to subjects and objects, whose syntactic roles are also indicated only by position, so that's not much of an objection.

-- 
SuStel
http://trimboli.name