ὑποσπᾰθ-ισμός · hypospath-ismos — LSJ
an operation for eye-affections, wherein a spatula (cf. sq. [ὑποσπαθιστήρ]) is introduced under the skin of the scalp to produce lines of scar tissue on the forehead, Gal. 14.784, Paul.Aeg. 6.6: cf. ὑπο-, περι-σκυφισμός.