καρδίαις (kardiais)
καρδίαις is an Ancient Greek form of καρδία, meaning “heart”. It is the dative plural feminine noun.
Found 41 times in the Ancient Greek texts on Socratos.
Where it is used
New Testament, Matthew 9.4: καὶ εἰδὼς ὁ Ἰησοῦς τὰς ἐνθυμήσεις αὐτῶν εἶπεν Ἵνα τί ἐνθυμεῖσθε πονηρὰ ἐν ταῖς καρδίαις ὑμῶν;
All forms of καρδία (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.