ἰσχν-αίνω · ischn-ainō — LSJ
make dry, wither, ἐπεὰν τὸν νεκρὸν ἰσχνήνωσι, of a mummy, Hdt. 3.24, cf. Hp. Aph. 5.22, A. Eu. 267, Pl. Grg. 522a, etc.; ἰ. τὸ σῶμα Hp. Art. 33, cf. Pl. Plt. 293b, Arist. Metaph. 1048b27; ἔπινε βρῦτον ἰσχναίνων χρόα A. Fr. 124.
reduce a swelling, Hp. Liqu. 6, Aph. 5.25: metaph., σφυδῶντα θυμὸν ἰ. to bring down a proud stomach, A. Pr. 382; τὸ δεινὸν καὶ διαφθαρὲν φρενῶν ἴσχναινε E. Or. 298; τὴν τέχνην οἰδοῦσαν ἴσχνανα I reduced the swollen art (Tragedy), Ar. Ra. 941.— In the metaph. sense, ἰσχαίνω is a constant v.l. (as in the compds. κατισχναίνω, συνισχναίνω); cf. ἰσχάνω fin.