φρήν
I. properly = διάφραγμα, "the midriff or muscle which parts" the heart and lungs "(viscera thoracis)" from the lower viscera "(abdominis)", Aesch.; usually in pl., Arist., etc.
II. in Hom., φρήν or φρένες = "the parts about the heart, the breast", Lat. praecordia, Il.; φρένες ἀμφιμέλαιναι id=Il.
2. "the heart", as the seat of the passions, Hom., etc.; ἐκ φρενός from one's "very heart", Aesch.; φῦσαι φρένας to produce "a haughty spirit", Soph.
3. "the heart or mind", as the seat of thought, φρενὶ νοεῖν, ἐπίστασθαι Il., etc.; μετὰ φρεσὶ μερμηρίζειν Od.; κατὰ φρένα εἰδέναι, γνῶναι Il., etc.; κατὰ φρένα καὶ κατὰ θυμόν, as in Lat. mens animusque, id=Il.;—hence men lose their φρένες, i. e. their "wits", Od.; πλήγη φρένας ἃς πάρος εἶχεν Il.;—so, in attic, φρενῶν ἀφεστάναι, ἐκστῆναι to be out of "one's wits", Soph., Eur.; ποῦ ποτ᾽ εἰ φρενῶν; "satisne sanus es?" Soph.; φρενῶν ἐπήβολος in possession of "one's senses", id=Soph.; ἔνδον φρενῶν Eur.; ἐξ ἄκρας φρενός, i. e. superficially, Aesch.
4. of beasts, Il.
5. "will, purpose", Soph.