LSJ
ίδος, ἡ, knife, v.l. for κοπίς, Luc. Asin. 40, cf. Hdn. Epim. 63.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ίδος, ἡ (καίνω), Schlachtmesser, Schwert, Luc. Asin. 40, v.l. κοπίς, s. Hdn. epimer. p. 63.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)