δια-πνέω · dia-pneō — LSJ
blow through, of air, δ. τὸ σῶμα Arist. Pr. 967a3, cf. Mete. 370b6, etc.:—Pass., αὔραις διαπνεῖσθαι X. Smp. 2.25, cf. Arist. HA 518a16, D.S. 5.82.
intr., admit air, ἀπόφραξον ἅπαντα ὡς μὴ διαπνέειν Hero Spir. 2.21.
breathe between times, get breath, Plb. 27.9.10, Plu. Cim. 12, Ph. 1.90, al.; ἐκ δυσχερείας Plb. 31.4.1.
intr., disperse in vapour, evaporate, Arist. Resp. 479a17, PA 671a20, cf. Ph. 2.42: so,
Pass., διαπίπτειν καὶ διαπνεῖσθαι Pl. Phd. 80c; δ. καὶ σήπεται τὸ σῶμα Arist. de An. 411b9.
Medic., dissipate by exhalation, Aret. SA 1.7:—Pass., Gal. 15.377 (also intr. in pass. sense, διέπνευσε τὸ ἄλγος Aret. CA 1.10).
Pass., of plants, exhale, διαπνεῖται καὶ ἐξατμίζεται Thphr. CP 1.1.3, cf. M.Ant. 6.16; of human beings, perspire, Id. 3.1, Gal. 15.377:—so Med., Hp. Alim. 28.