θρίσσα
From LSJ
αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
English (LSJ)
Att. θρίττα, ἡ,
A a fish,= τριχίας, Anaxandr.41.52, Ephipp. 12.5, Arist.HA621b16, PCair.Zen.40(iii B.C.), al., Gp.20.7.1: θρείσσα, BGU816.20 (iii A.D.): θρίσσος, ὁ, is v.l. in AP6.304 (Phan.).
German (Pape)
[Seite 1219] att. θρίττα, ἡ, ein Fisch, = τριχίς; Arist. H. A. 9, 37; Ath. VII, 328 e; Ep. ad. (X, 9).
Greek (Liddell-Scott)
θρίσσα: Ἀττ. θρίττα, ἡ, κοινῶς «φρίσσα», κατὰ τροπὴν τοῦ θ εἰς φ, ὡς τὸ φηκάριον ἀντὶ θηκάριον κτλ. (ἴδε σημ. Κοραῆ εἰς Ξενοκράτην σ. 206), Ἀναξανδρ. ἐν Πρωτ. 1. 52, Ἔφιππ. ἐν Κύδ. 1. 5, Ἀριστ. Ι. Ζ. 9. 37, 16.