Correct spelling


Correct spelling, explanation: the word goddess is created from word god and suffix -ess (which we use to create a female form, like actress or authoress). The word god ends with combination consonant-vowel-consonant (at is it in itself). This means the last letter doubles when we add a suffix. Therefore goddess is the correct form, and godess is incorrect.

Definition of goddess:
noun, a female deity
Cybele is the goddess of nature and fertility.
Jane is a really pretty girl, like a goddess!

Incorrect spelling


Incorrect spelling, explanation: godess is incorrect, because d in the word god should be doubled when adding a suffix, due to consonant-vowel-consonant combination at the end. Due to this rule the correct form should be goddessgod plus suffix -ess, meaning a female version of the noun (as in waiterwaitress). Thus goddess is the correct form.