Words ending in "eza" (i.e. naturaleza)

Question

What is the rule in Spanish language to English language translation regarding words ending in "eza'? (i.e. naturaleza)

For example, "mente" in Spanish is the equivalent of "ly" in English. originamente = originally definamente = definitely etc.

Answer 1

I think its similar/close to "-ness"

The "eza-ez" suffix separate an abstract noun from an adjective

The "eza" is used for 1 or 2 syllable base and "ez" is for a 3 or more syllable base.

For example:

duro (du-ro) [2 syllables]= dureza

tímido (ti-mi-do)[3 syllables]= timidez

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-eza and -ez. like already stated, separate an abstract noun from its adjective form.

extraño= weird (adj)

Extrañeza= weirdness (noun)

I'm actually reaserching this now, it's quite complicated how to accurately determine when to use -ez over -eza, because obviously "naturaleza" and "extraneza" don't follow the rules.