Compare Two Cells & Return Whats Common Between the two strings and delete the variation

HI all,

I have a file where there are products with variations in their name I have to create a Parent for each group, how ever the parent should not have the variation info in the title so i have to manually delete it after i create the parents.

Im looking for a function that will compare 2 cells, (the first cell and the cell below it) and compare the differences between the 2 and return only the common part.

ex:
Curvaceous Womens Plus Size Black Crop Lace Trimmed Leggings - 18
Curvaceous Womens Plus Size Black Crop Lace Trimmed Leggings - 20

output:
Curvaceous Womens Plus Size Black Crop Lace Trimmed Leggings -

example:

Nike T-shirt Red & Blue Large For Men
Nike T-shirt Green Small For Men

output:

Nike T-shirt For Men



really need some help with this ( Will give recognition and everything)

Thanks!!