We also have the unalternating *-tor- suffix of agent nouns and the
heteroclitic *-tr/*-t(e)n- of neuters (like *h1ei-tr 'route'), very
popular in Hittite . The less securely reconstructed "woman" suffix *-
sor-/*-sr- and the conjectural kinship suffix *-h2ter- have no *-n-
alternants. If heteroclisy ever occurred in active/animate paradigms,
it must have been eliminated very early.
BTW, *-w(e)r- is not necessarily *-w-(e)r-. It it were complex, we
would expect the "missing link" *-w- to occur independently. Of
course PIE has *-u- stems, but nomina obiecti in *-wr are not derived
from them. For example, *h1edwr 'food' is not (unattested and
semantically uninterpretable) **h1edu- + *-r but *h1ed- + *-wr.
Piotr
--- In cybalist@..., "Glen Gordon" <glengordon01@...> wrote:
> What other *-r suffixes are there in IE except for *-e:r?