Ἡμεροσκοπείῳ
ἡμεροσκοπεῖον, place for watching by day
Morpho works with a static database. If you like, you can compare the output of Morpheus.
Parsed as:
Proper-name noun neuter dative singular of ἡμεροσκοπεῖον
No checked forms of ἡμεροσκοπεῖον in the morphology database.