Among conversions of this character, Colman--Anderson (2004) label such denominals as that in butcher the animals/villagers as "agent-based", but they seem rather to be based on the verb plus another circumstantial, namely one of manner ("in the manner of"), though in this case involving an agentive noun ("in the manner of a particular kind of agent").
There is respect for valency in denominal complex categorization (12).
So that, we might represent a de-adjectival or denominal weak verb, schematically, as in (24), where ' WK' is an abbreviation for the morphophonological characteristics of the class (conflating for present purposes the sub-classes):
Evidence of regular inflection as a default can be captured with the inflection which is assigned to borrowings, names, and denominals in English and Hebrew; all of which fail to trigger default irregular patterns as a stored association, because these 'elsewhere' forms lack a canonical root which to be explained later in this paper (Berent 1999, Kim et al 1991, 1994 and Marcus et al 1995).
Similar to the borrowings, names and denominals, the Extended Plural forms in MSA are assigned the regular inflection as presented in the data shown below (Suleiman 1985; El-Yasin 1985; Boudella and Gaskell 2002; Wright 1967 and 1995; and Levi 1971).
Canonical root can be indispensible in the generality of the default inflection to words that have no access to the memory such as borrowings, denominals, names, diminutives, etc.
We begin with the denominals. As the lexical entry in (20) indicates, -er forms concrete situational nouns; its featural content is exactly the same as that of -ee.
The affix, however, does add the semantic content that makes the base noun dynamic in some way; in other words, denominals in -er always have a "verby" sort of paraphrase: a Londoner is someone who lives in London, a mouser a cat which catches mice, a wetenschapper someone who does science, and so on.
In Dutch, the denominal use of -er is also rather productive (Van Santen 1992; Booij 2002: 123).