προοιμιαστέον
προοιμιαστέον, one must premise
Alas! Could not find the search term προοιμιαστέον.
Found the closest form προοιμιασάμεθα. Other nearby forms can be found in the wordwheel, or perhaps try searching again without accents.
Morpho works with a static database. If you like, you can compare the output of Morpheus.
Parsed as:
aorist middle indicative 1st plural of προοιμιάζομαι
No checked forms of προοιμιαστέον in the morphology database.