Conversely, if the bare verb was univalent to begin with (i.e. couldn't normally take an object, like {Qong}, {QaQ}), then the derivative with {-'eghmoH} probably cannot take an object either. How would one shoehorn an explicit object into, say, {bel'eghmoH} "please oneself"?

It's not a question of valency, it's a question of syntactic roles. What is having something done to it? That's your object. If you can't think of anything, then you can't add an object. It can't be "self," because the suffix -'egh already says that.

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SuStel
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