σάπων

ωνος, ὁ
A. sapo, soap, τῷ Γερμανικῷ σμήγματι(καλεῖται δὲ ς.) Ruf. ap. Orib. 45.29.59, cf. Asclep. ap. Gal. 12.586, Aret. CD 2.13:—a Gallic invention (hair-dye) adopted by the Germans acc. to Plin. HN 28.191. [α, Seren.Sammon. 153.] (The Germanic forms (OHG. seifa, OE. sápe, etc.) come fr.prim. Germanic *saipjō, whence also Finn. saippio; cf. σήπων.)
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project