Spelling: Suffixes
Suffixes cause many of our common spelling mistakes. One challenge is simply to know which is correct: for example, legible or legable? In fact, −ible and −able serve the same function, and sound the same. As a matter of history, -ible entered English from Latin, while −able entered English from French, but there’s no easy rule for knowing when to use which suffix. Each word with each suffix just requires practice.
