Editing 1697: Intervocalic Fortition

The linguistic processes of {{w|lenition}} ("weakening") and {{w|fortition}} ("strengthening") refer to a sound becoming, respectively, either more or less vowel-like. {{w|Intervocalic}} means "between two vowels." An unvoiced consonant like ''f'' in between two vowels (which are {{w|Voicelessness#Voiceless_vowels_and_other_sonorants|almost always}} voiced) is more noticeable and takes more effort to pronounce than the voiced version ''v'' of the same sound in that position, so a change from ''v'' to ''f'' in this context would be an example of fortition. As a rule, however, lenition is much more common, and in fact one of the most common regular changes observed across languages is the kind of lenition that is the precise opposite of Cueball's prank: An unvoiced consonant between two vowels comes to be spoken, over time, as a voiced consonant, such as the middle consonant in the word "butter" that in American English is now pronounced as a brief {{w|alveolar tap}} [ɾ] rather than [t]. Observing a pattern of fortition rather than lenition in that position (especially for just one particular consonant) would be a very puzzling phenomenon to future linguists.