5. Morphology in Relation to Phonology

F. Plank, Morphology I: 5. Morphology in Relation to Phonology 30
Now, reduplication to form the perfect forms of a subset of verbs in
Latin is different. As seen in greater detail in an earlier homework
exercise, the reduplicand is here identified phonologically, namely as
the template CV-, which is precisely the shape of a prototypical syllable;
and this abstract template is realised through the onset consonant of the
stem (ignoring extrametrical /s/ in /s/ clusters) followed by the nucleus
vowel of the stem of the verb at issue (with /e/ as the default if the stem
itself is lacking a vowel, and with some stem vowels also changed to /e/
too).
Thus: stem PERFECT
mord- ‘bite’ CV-mord-: mo-mord-
More examples in the homework exercise.