Same or similar entry in other lexica. The headword (which must be quoted from somewhere) is a present participle -- either masculine accusative singular or neuter nominative/accusative plural -- of the Attic verb diere/ttw.
The present participle of the Ionic form of the verb, diere/ssw, occurs in Euripides, Trojan Women 1258, but there it is masculine accusative plural (web address 1).