The spelling of the word “mommy” or “mommie” is often a subject of debate, especially since both variations are commonly used in written and spoken English. In this answer, we will explore the origins and history of these two spellings, their usage, and their acceptance in modern English.

The word “mommy” and “mommie” are both used to refer to a mother, typically in an affectionate or informal way. Both spellings are considered correct in the sense that they convey the same meaning and are widely used in the English language. However, the spelling “mommy” is more common and widely accepted than “mommie.”
The spelling “mommy” is the more widely accepted and common version of the word. The word “mommy” is derived from the word “mother,” which has been used in English since the 16th century. The word “mommy” first appeared in the English language in the mid-19th century and has since become the more widely accepted spelling. It is considered the standard spelling in American English and is used in most modern dictionaries, including the Oxford English Dictionary.
On the other hand, “mommie” is a less commonly used spelling of the word. The spelling “mommie” is considered a nonstandard variation and is not typically used in formal writing or speech. The origin of the spelling “mommie” is unclear, but it is believed to have originated as a term of endearment in the early 20th century. It was popularized by the 1960s TV show “The Addams Family,” where the character of Morticia Addams would often refer to her daughter as “mommie.”
While the spelling “mommie” may have gained popularity through popular culture, it is still considered a nonstandard variation of the word “mommy.” The spelling “mommie” is not recognized by most modern dictionaries, including the Oxford English Dictionary. Therefore, if you are unsure which spelling to use, it is safer to go with the more widely accepted and standard spelling of “mommy.”
In conclusion, both “mommy” and “mommie” are used to refer to a mother in English. However, “mommy” is the more widely accepted and standard spelling, while “mommie” is considered a nonstandard variation. If you are writing in a formal context, it is recommended that you use the spelling “mommy.” However, if you are writing informally or using the term as a term of endearment, either spelling is acceptable.