Suffixes -ible or -ibles

Question

Question: Is "maremoto" or "tsunami" more often used.

Answer: Tsunami is a newer word to enter the spanish vocabulary, often understood due to recent news coverage from Asia. One spanish speaker replied, "Ambos son entendibles y bastante usados."

I began to wonder about the -ibles suffix on the word "entendibles".

The word entendibles seemed to be related to entender, and I also found a similar use of the -ible or -ibles suffix in the word, "oíble". I wonder how general this construction is. Does the -ible(s) suffix change if the transitive verb is of the -ar, -ir, or -er type?

Based on that background, here is my question:

Are the suffixes -ible or -ibles often used to change a transitive verb, or it's participle, into another word (a noun or adjective) that has a related meaning? Does the suffix add a meaning like "capability of being (heard, or seen, or understood, or done, etc)". Think of these example words: oible (meaning audible,from oir), or entendibles (things,plural, that are understandable, from entender).

Answer 1

Does the -ible(s) suffix change if the transitive verb is of the -ar, -ir, or -er type?

contable countable [AR verb contar]

Suffix

Etymology

From Latin -ibilis

-ible

-ible

Derived terms

• audible
• comestible
• sensible
• indestructible
• susceptible
• incorrigible
• gullible
• distractible
• resistible

Spanish Etymology From Latin -?bilis.

Suffix

-able (plural -ables)

able to be done (similar to English, above)