ὀρεσσινόμου

Morpho works with a static database. If you like, you can compare the output of Morpheus.

Parsed as:

✓ masculine genitive singular (cp ὀρεσσινόμος)
feminine genitive singular (cp ὀρεσσινόμος)
neuter genitive singular (cp ὀρεσσινόμος) of ὀρεινόμος