λείβ-ηθρον · leib-ēthron — LSJ
wet country or place, Eup. 428, e Phot. (ubi λίβηθρα et sic Kock), cf. Ael.Dion. Fr. 244.
channel, Phot., Lex.Rhet. ap. Eust. 1235.58.
Λείβηθρον, τό, mountain district of Thrace inhabited by Orpheus, Str. 9.2.25, etc.; τὸ Λιβήθριον Paus. 9.34.4: the inhabitants were proverbially dull, whence the phrases ᾄδειν ἀμουσότερα Λειβηθρίων Aristaenet. 1.27; Λειβηθρίων ἀνοητότεροι Thugen. 4.