μεσάραιον
From LSJ
ἀρκετὸν τῇ ἡμέρᾳ ἡ κακία αὐτῆς → sufficient unto the day is the evil thereof, each day has enough trouble of its own, there is no need to add to the troubles each day brings (Matthew 6:34)
English (LSJ)
(sc. δέρμα), τό,
A = μεσεντέριον, Gal.2.561, Ruf.Anat. 50: pl., Steph. in Hp.1.134 D.:—hence Adj. μεσ-αραϊκαὶ φλέβες ib. 139 D.