The Silent e
The Silent E rule of Modern English involves the changing of vowels due to an e at the end of the word. Historically the final e was pronounced as a schwa /ə/. It also indicated a different stress, and those vowels had a more heavily affected by the Great Vowel Shift.
|Vowel with silent e
|Compareable vowel tri/digraph
|e_e is rare and has usually been respelled as ee
|Sorry, couldn't find a "minimal triplet"