φρήν genitive, φρενός, ἡ,
[in LXX most frequently in Pr (Pro.6:32, al.) and chiefly for לֵב; also 3Ma.4:16 3Mac 5:47 ;]
chiefly in Hom. and Trag., but also in Plat., al., both sing. and pl.;
__1. in physical sense, the parts about the heart, midriff.
__2. heart, mind, thought: pl., 1Co.14:20 (see Edwards, Eng.-Gr. Lex., App., 1).†
(AS)