The headword, perhaps extracted from the quotation given (though see next note), is feminine nominative singular of this adjective.
[1] Same or similar glossing in other lexica, including Apollonius' Homeric Lexicon. The dative singular in Homer, Odyssey 1.50 (and three other instances), may have generated this nominative; cf. the scholia there
[2] Greek Anthology 7.588.3-4 (Paul the Silentiary), an epitaph for Damocharis. Damocharis of Cos (Kos) (late C5-early C6 CE) was a grammarian, epigrammatist, Byzantine official, and friend of the poet Agathias (alpha 112); cf. Smith s.v. (935). On the great physician and medical writer Hippocrates of Cos, see iota 564.