a) the still productive and frequent -mo, -ma, -me deverbal noun suffix (nomen actionis and nomen instrumenti);
Devajev 's Erzya and Moksha comparative grammatical essay ([TEXT NOT REPRODUCIBLE IN ASCII] 1975:92), there are two main categories distinguished: words naming the means, object, result or the intensity of an action ([TEXT NOT REPRODUCIBLE IN ASCII] [thrasher]', [TEXT NOT REPRODUCIBLE IN ASCII] [towel]', [TEXT NOT REPRODUCIBLE IN ASCII] [bite]', [TEXT NOT REPRODUCIBLE IN ASCII] [leash]'), and nouns referring to some kind of an action (action nouns, nomen actionis): [TEXT NOT REPRODUCIBLE IN ASCII] [walking]', [TEXT NOT REPRODUCIBLE IN ASCII] [singing]', [TEXT NOT REPRODUCIBLE IN ASCII] [making, preparation]'.
This phenomenon occurs without further qualification of the infinitive (or nomen actionis).
formation functions as an objective nomen actionis:  ukullam damqam sukun-ma serusu la innassiku (9) tem seri sa alpim warkim PN asal-ma naskussu iqabbiakkum "Place good fodder so that his flesh does not get slender.
With verbs such as qabum the nomen actionis always represents an indicate content ("the fact that he dwells"), ana parasim a modal content ("to do"), while the accusative infinitive can convey both, depending upon contextual information.
In (9) we have an unqualified nomen actionis (7) instead:  um gerram parik itatini iktamsu wedenu sa ina eteqim u ba'im am inattalu nertam inerru The barley blocks the way.
Note, however, that this so far is the sole attestation of an unqualified nomen actionis.
In OB too, inner object is attested when the accusative infinitive (or nomen actionis) is qualified, e.g., by pronouns (several such examples are adduced by Aro 1961: 107, exemplifying plural infinitive and a genitive pronoun, by substantives, etc.:  damaqisunu idammiq lemenisunu ilemmin Il jouira de leurs joies, il soufrira de leurs peines.
YPC 102), has been kept in the language in its different conjugational forms, used as the counterpart to ulini 'to live' in a pair-verb: ulom-vilem 'we'll live, we'll be', uli'l'am-vilil'am 'they lived, they were once', ulem-vilem 'he/she lived, he/she was once', ulon-vilon 'life-existence' (nomen actionis