What is the distinction between -able and -ible?

The suffixes "-able" and "-ible" both indicate the ability or possibility of something. However, they are not used interchangeably. Here's a breakdown of their distinctions:

-able:

* Origin: Derived from the Old French "-able" and the Latin "-abilis," meaning "capable of."

* Use: Generally used with verbs and nouns, often indicating a passive ability or something that can be acted upon.

* Examples: breakable, readable, movable, washable

-ible:

* Origin: Derived from the Latin "-ibilis," meaning "capable of being."

* Use: Typically used with verbs, often indicating an active ability or something that is capable of doing something.

* Examples: flexible, edible, divisible, audible, visible

Key Differences:

* Active vs. Passive: "-able" often implies something that can be acted upon, while "-ible" suggests something that has the ability to act.

* Verb vs. Noun: "-able" can be used with both verbs and nouns, while "-ible" is primarily used with verbs.

* Origin: Although both ultimately derive from Latin, "-able" has a stronger French influence.

Exceptions and Overlaps:

There are exceptions and cases where the distinction isn't clear-cut. Some words can be formed with either suffix, sometimes with subtle differences in meaning. For example:

* "Changeable" vs. "Changible": "Changeable" implies something that can be changed, while "changible" suggests something that is capable of changing.

* "Acceptable" vs. "Acceptible": Both imply something that is acceptable, but "acceptable" is more common.

General Rule of Thumb:

If unsure, "able" is usually the safer bet. However, it's always helpful to check a dictionary or reliable online resource for the specific word you're looking for.