δεινῆς (deines)
δεινῆς is an Ancient Greek form of δεινός, meaning “terrible, fearful; clever, formidable”. It is the genitive singular feminine adjective.
Found 53 times in the Ancient Greek texts on Socratos.
Where it is used
Euripides, Suppliants 715: δεινῆς κορύνης διαφέρων ἐσφενδόνα
Hesiod, Theogony 829: φωναὶ δʼ ἐν πάσῃσιν ἔσαν δεινῇς κεφαλῇσι
All forms of δεινός (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.