fortifiedthe
fortifiedthe is a term that appears to be a misspelling or a portmanteau. In its most likely interpretation, it suggests a misunderstanding of the word "fortified." Fortified refers to something that has been strengthened or made more robust, often through the addition of a reinforcing element. This can apply to physical structures, such as a fortified castle, or to substances, like fortified foods which have added vitamins or minerals.
If "fortifiedthe" is intended as a compound word, its meaning would depend entirely on the intended context.
In the realm of food science, fortification is a public health strategy used to increase the intake
Given the ambiguity of "fortifiedthe," it is recommended to consult the source where this term was encountered