μακρηγορώτατον
μακρήγορος, speaking at great length
Morpho works with a static database. If you like, you can compare the output of Morpheus.
Parsed as:
masculine accusative singular superlative (newmorph18)
neuter accusative singular superlative (newmorph18)
neuter nominative singular superlative (newmorph18)
neuter vocative singular superlative (newmorph18) of
μακρήγορος
No checked forms of μακρήγορος in the morphology database.