GRC
Bailly
ας, adj. f. de ῥυπτήρ NIC. Al. 370.
Bailly 2020 Hugo Chávez Gérard Gréco, André Charbonnet, Mark De Wilde, Bernard Maréchal & contributeurs / Licence Creative Commons Attribution - Pas d'Utilisation Commerciale - Pas de Modification — « CC BY-NC-ND 4.0 »
LSJ
as if fem. of ῥυπτήρ (which is only f.l. for ἀρυτήρ in Dsc. 2.74), that cleanses from dirt, ῥ. κονίη soap, lye, v.l. for θρύπτειρα in Nic. Al. 370.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ἡ, fem. zu ῥυπτήρ, Wäscherin, reinigend, κονία, Nic. Al. 370.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)