116 3 Phonologyterms of the point in derivations where they apply. These comments apply to
verbal morphology only.
In the long imperfective system, a distinction should be made between the
ablaut components that apply to all three stems in the system (LoImpfP,
LoImpfN, Prohib), and those that apply only to the LoImpfP, namely χ-pcl
and χ-pcl, whose combined effect is to lengthen and accent the first
postconsonantal V. These two LoImpfP formatives arguably apply at a later
stage than χ-f (lengthening of final V) and the consonantal changes that apply
to all long imperfectives. In §8.1.6 I give a derivation of (morphologically
causative) LoImpfP -s-infu- 'rest' from /-s-unfu-/ plus several ablaut
components, arguing that χ-pcl and χ-pcl follow u-Spreading and Medial
V-Shortening (two "phonological" rules that are part of ablaut), while other
ablaut components are associated prior to these rules. The formatives χ-pcl
and χ-pcl also occur in the Resit stem in the perfective system, and have
unusual properties there also. Not coincidentally, these are the formatives that
are erased or shifted in specific syntactic constructions, e-pclf may be another
late-applying formative, since it shares with χ-pcl the ability to apply audibly
in cases of rebracketing of (part of) a subject suffix with a -v(C)Cu- verb stem.
3.4.5.1 Summary
The data for targeting of vocalic formatives are summarized in (88).
(88) Local Vocalic Formative Association Rules
a. targets first postconsonantal V
χ-pcl Resit, LoImpfP accent on 1st postconsonantal V
χ-pcl Resit, LoImpfP 1st postconsonantal V lengthenedb. targets V of final syllable of stem
χ-f long imperfectives, last V in stem is lengthened
PI of heavy VblN
a-f heavy VblN a in final syllable becomes α
arguably also:
(χ-f some ablaut Pi's accent on the stem-final)c. targets first postconsonantal V that is also last V of stem
e-pelf PerfN 1st postconsonantal V (always
a;), if also the stem's last
V, becomes ed. targets penultimate V
χ-pen some VblN's accent on the stem penult