Middle Valthungian represents a period in the development of Valthungian lasting from around 1200‒1600 a.d. marked mainly by palatalization of a great many consonants as well as some minor reduction to unstressed vowels. Though this is a range which experienced many changes, the most representative example of “Middle Valthungian” is the language as captured by the suddenly-prolific Valthungian writers at the beginning of the Renaissance, circa 1450‒1500 a.d.
Major Changes from Old Valthungian Middle Valthungian
Defenestration of Greek Fricatives
Vowel Tensing
Rhotacism Fail
Elimination of Non-Word-Initial /h/
Deletion of Interconsonantal /h/
Changes of /h/ to /θ/
Changes of /h/ to /f/
Compensatory Lengthening
Further Changes of /h/ to /θ/
Assimilation of /s/ in Consonant Clusters
Palatalization
Palatalization of /sk/ after Front Vowels
Change of /hj/ to /šj/
Palatalization of Non-Labial Stop Consonants before /j/
Vowel Reduction
Major Changes from Middle Valthungian to Valthungian
Vowel Reduction
Deletion of Word-Final /a/
Lowering of Unstressed Short Vowels
Shortening of Unstressed Long Vowels
Changes to Unstressed Word-Final Syllables
Un-Tensing of Front Middle Diphthongs
Raising of Middle Diphthongs
Syllabic Unpacking
Affrication and Merging of Palatals & Deletion of /j/
Deletion of /b/ and /f/ after /m/
Vocalization of /w/