1. κάρχαρος · karcharos — Beekes
κάρχαρος [adj.] ‘biting, sharp, raw’ (Alcm. 140, Lyc., Opp.).
eVAR With reshaped ending kapyapéoc (EM). *COMP Kapyapddwv (-ouc), -οντος ‘with sharp teeth’ (IL, Hes., Ar., Arist., Thphr.; cf. Sommer 1948: 93). eDER καρχαρίας [m.] ‘kind of shark’ (Pl. Com., Sophr,; cf. Thompson 1947 s.v., Stromberg 1943: 45). *ETYM Onomatopoeic reduplicated formation (Schwyzer: 423; cf. Tichy 1983: 174°), which has been … — [Beekes, s.v. κάρχαρος, p. 699] 2. κάρχαρος · karcharos — Frisk
κάρχαρος "beißend, bissig, scharf, rauh’ (Alkm. 140, Lyk., Opp., sp. Prosa), καρχαρόδων (-ovs), -ovrosg "mit scharfen Zähnen’ (I., Hes., Ar., Arist., Thphr.; vgl. Sommer Nominalkomp. 93 m. Lit.); im Ausgang umgebildet καρχαρέος (EM). Ableitung καρχαρίας m. Art Haifisch (Pl. Kom., Sophr. u.a.; vgl. Thompson Fishes s.v., Strömberg Fischnamen 45). Onomatopoetische Reduplikationsbildung (Schwyzer 423). Man vergleicht … — [Frisk, s.v. κάρχαρος, p. 828]
3. κάρχᾰρ-ος · karchar-os — LSJ
saw-like, jagged, with saw-like jagged teethsaw-like, jagged, so with saw-like jagged teeth, κύων Lyc. 34, Luc. Luct. 4, cf. Ael. NA 16.18; στόμα Opp. C. 3.142; ἕρκος Id. H. 1.506; ὀδόντες Philostr. Im. 2.18; δῆγμα Luc. Trag. 302; κάρχαρον μειδήσας, of the wolf, Babr. 94.6.
2 harsh, rough, rudemetaph., harsh, of sounds or language, καρχάραισι φωναῖς Alcm. l.c., cf. Luc. Hist.Conscr. 43; ῥήτωρ Id. Merc.Cond. 35; nickname of Thrason, Bato Sinop. 3; rough, rude, [ἤθη] κ. καὶ σκολιά Plu. Tranq. 2.468c.