jatlh SuStel:

I would hesitate to include any type 1, 6, or 8 suffixes on a -wI' verb. 1, because I'm not sure about how the reflexive nature of the word interacts with -wI' (but I'd probably accept something like HIvchuqwI' those who attack each other). 6, because there are analogous noun suffixes to do the same thing, except -chu', which seems more important to a noun's fundamental meaning. 8, because -neS would be more appropriate on the main verb of the sentence, not tucked away inside a noun.

I'd think Type 1 would generally work, but only for actions that can be reflexive. And {HIvchuqwI'} would make sense to me used as a singular noun, knowing that it's a word like {'er'In}: even if {megh'an} isn't mentioned, I know there must be one. {yayta' wa' HIvchuqwI' neH} makes sense, doesn't it? Of course {-chu'} works with {-wI'}, or else ghunchu'wI' would vanish in a puff of grammar, and I expect everyone would accept {HubneSwI'} and {HIvneSwI'} as about the only exceptions to your caveat about Type 8.

But for other suffixes plus {-wI'}, I'd expect the the likeliest cause of raised eyebrows would be {-lu'}. There isn't a consensus on this, though one of my fondest wishes is for Maltz to confirm my opinion on the matter.
--
mIp'av yergho
bu''a'
baHwI'
IKAV chuch 'etlh

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