Essentially, Brongers operates under the assumption that the asseverative meaning stems from the nature of the negative interrogative rhetorical question, which usually expects a positive response.
Another approach has been offered by some Northwest Semitic grammarians, namely one which posits a new etymology for the asseverative meaning, separate and therefore distinct from the negative interrogative particle.
allegedly providing the comparitive evidence for a counterpart in Hebrew, though now lost as a result of the MT's conflating it with halo' The El Amama (EA) particle allu has had a similar effect, leading some scholars to posit yet another etymological relative of the newly proposed Hebrew asseverative.
Does the comparative evidence indeed make it necessary to reconstruct a now lost asseverative particle for Classical Hebrew?
Furthermore, their overlap in usage throughout the epistolary materials makes Ugaritic hl an unlikely parallel for the so-called Hebrew asseverative *halluw.
41) The difficulty of this connection, however, does not end here, since it is assumed that the underlying proto-Semitic particle of the various reflexes evident in the Semitic languages is the asseverative lu.
The existence of the Ugaritic asseverative 'al offers a more appropriate etymological parallel to EA al-lu, and furthermore, it maintains a functional distinction from the local adverbial usage of hl (along with its permutations hln, hlny) evident throughout Ugaritic epistlography.
Conversely, a brief survey of the secondary literature on the particle kI and of the particle's functions in 1 Samuel suggests that it can function neither as an asseverative particle (one of its commonly posited roles in oaths), nor as a conditional particle (as it is translated in NRSV Ruth 1:17).
Conklin's data show that Akkadian oaths sometimes pattern with the content introduced by an asseverative particle Oa; p.
Here, however, we have an asseverative, adding insistence to the protasis, "if you did accept.
55] and  cannot; they have to be asseverative (lu iprus and lu iparras always are);
the issue is pre-mentioned (attadin), which is one of the syntactic characteristics of asseverative forms.