Word allows you to use a concordance document for the creation of Index entries, via References|Insert Index>Automark. You could add your list to such a document.
The Index concordance document is essentially a two-column table in which the texts to be indexed is in the first column and the form of the Index entries is in the second column. However, see:
https://wordmvp.com/FAQs/Formatting/CreateIndex.htm
Once the entries are marked, see:
https://support.office.com/en-us/art...2-cda9d14bf073