Simply put, anniversary is based on “annum” meaning “year.” If you want to celebrate an event that recurs each month, you should use word, mensis. That means that your “one month anniversary” is actually your mensiversary.
What is called one month?
Definition of month 1 : a measure of time corresponding nearly to the period of the moon's revolution and amounting to approximately 4 weeks or 30 days or ¹/₁₂ of a year.
How do you wish a 1month anniversary?
I am so thrilled to be with you, and I hope you know that! This 1 month anniversary will be the first celebration that we have as a couple, and I hope that there will be many, many more other celebrations that will follow this one. I love you! May this 1 month anniversary bring us more joy, happiness, and love.
Should I celebrate 1 month anniversary?
There's no rule that says you must celebrate a one month-anniversary, or that you must buy a gift. If you'd both honestly just like to let it pass without making a fuss, that's fine. Or, if you decide gifts are okay, but want to keep clear limits — under $20; homemade only; etc. — that's fine too.