ἔνηχος
From LSJ
Δύο γὰρ, ἐπιστήμη τε καὶ δόξα, ὧν τὸ μὲν ἐπίστασθαι ποιέει, τὸ δὲ ἀγνοεῖν → Two different things are science and belief: the one brings knowledge, the other ignorance (Hippocrates)
English (LSJ)
ον,
A sounding within, of wind-instruments, opp. ἔγχορδος, Phillis ap.Ath.14.636c: generally, sounding, noisy, ἀναπνοή Herod. Med. in Rh.Mus.58.77; ἔ. ὕδατα Philostr.VA6.26. II c. gen., acquainted, conversant with, LXXSi.prol.9 (s.v.l.).
German (Pape)
[Seite 841] einen Ton in sich habend, bei Ath. XIV, p. 636 c, im Ggstz von ἔγχορδα, Blaseinstrument; rauschend, κύμασι Philostr. v. Apoll. 6, 26.