“…Much of the neglect of semantic issues in the history of research of the origins of the s-cases can be understood in light of the Neogrammarian paradigm in which the functional aspects had to give way to regular sound changes such as *-sVn > -hVn > -Vn in suffixal positions in Finnish� However, as pointed out by critics (Wiklund 1927) and also admitted by proponents of the *s-lative (Erkki Itkonen 1966a), the lative theory is not without phonological problems either� In addition to the shortcomings already discussed in earlier literature, the research tradition also contains some minor arguments and examples that have never been critically evaluated� The Erzya adverb onsne 'in a dream' is one such example� The forms of the Mordvin inessives (Erzya -so, -se; Moksha -sa) do not contain any perceivable traces of the nasal *n postulated on the basis of the Saami (South Saami -sne, etc�) and Finnic (e�g�, -ssa, dialectal Finnish -hna and dialectal Estonian -hn) forms� To prove the identity of the Mordvin inessive with those of Saami and Finnic, a repeatedly cited example is the Erzya adverb onsne 'in a dream' (← on 'dream') (e�g�, Budenz 1879: 35-36; Donner 1879: 78; Beke 1911: 191)� Even long after Ravila (1935: 46-47) argued that -sne here is best regarded as a sporadic contamination of the suffixes -se and (apparently locative) -ne, onsne has been used as a proof of a more or less regular sound correspondence between the inessives (e�g�, Erkki Itkonen 1977: 124;Bartens 1999: 79) in the various branches� However, onsne is an extremely rare word that is even absent in Paasonen's voluminous dictionary, and in any case we are dealing with a hapax legomenon that can hardly be considered an "example" of anything relevant that could add to our understanding of the s-cases� Moreover, while the consonants of onsne have been presented as a simple proof of the origins of the Mordvin inessive, it is symptomatic that the unexpected vowel disharmony (onsne instead of **onsno; cf� the actual inessive form onso) has not raised any doubts in this context� On the other hand, the Erzya pronominal adverbs kozo 'whither' and tozo 'thither' and especially their dialectal variants kozoŋ and tozoŋ have been mentioned as possible support for the view that the most original form of the Saami and Finnic illative markers *-sin can ultimately be reconstructed as *-sVŋ with descendants in Mordvin, too (Bartens 1999: 115;Ylikoski 2011: 264)� However, it has been pointed out by Inaba (2015: 223) that in the dialects that seem to have preserved the most original forms, an identical final consonant -ŋ can also be heard in words such as loŋ 'snow' (instead of lov < Proto-Uralic *lumi)� Moreover, in old literary Erzya one can encounter nouns like lom 'snow' and directional expressions such as the lative postposition alom (pro alov, aloŋ) '(to) under, below', and for this reason Inaba calls for further research before it will be safe to reconstruct a lative in *-ŋ in Mordvin� Otherwise, it still seems safe to follow Setälä (1915: 23), Janhunen (1998: 469) and Bartens (1999: 76) in considering *-ŋ the most plausible reconstruction of any of the claimed Proto-Uralic lative cases (cf� Ylikoski 2011: 256-257)� If Erzya kozoŋ and tozoŋ are regarded as the most conservative variants of the adverbs in question, the element -zoŋ can also be interpreted as the most original reflex of the Pre-Mordvin illative marker *-siŋ� This in turn would be identical to the more original predecessors of the illative marker *-sin in both the Saami and Finnic proto-l...…”