Oppian, Hal. 1.181 (θύννοι μὲν θύνοντες, ἐν ἰχθύσιν ἔξοχοι ὁρμήν); Athenaeus, Deipn. VII.64 (ὠνομάσθη δὲ θύννος ἀπὸ τοῦ θύειν τε καὶ ὁρμᾶν. ὁρμητικὸς γὰρ ὁ ἰχθὺς); Athenaeus, Deipn. (epitome) 2.1.134 (idem); ibid., 2.1.150 (θύω, θύννος ὁ ὁρμητικός); Epimerismi homerici ordine alphabetico traditi, theta 13 (ἔστι γὰρ ἔθυνον, ὁ ἐνεστὼς θύνω, τὸ ὁρμῶ, καὶ ὄνομα ῥηματικὸν θῦνος καὶ πλεονασμῷ ἑτέρου ν θύννος, ὅπερ ἐν τῇ κοινῇ συνηθείᾳ καλεῖται θῦνα); Etym. Gudianum, theta, p. 266 (Θύννος, παρὰ τὸ θύω, τὸ ὁρμῶ, θύννος); Eustathius, Comm. Il., vol. 3, p. 669 (Ὁ δὲ ῥηθεὶς Ἀθήναιος θυννολογῶν ἀπὸ τοῦ θύειν τε, τὸ ὁρμᾶν, ἐτυμολογεῖ τὸν Αἰολικῶς τὸ νυ διπλάζοντα θύννον); Eustathius, Comm. Od., vol. 2, p. 23 (δῆλον δ’ ὅτι παρὰ τὸ θύνω τὸ ὁρμῶ, διπλωθέντος τοῦ ἀμεταβόλου, γίνεται ὁ θύννος) ; Etym. Magnum, Kallierges, p. 459 (Ἀπὸ τοῦ θύω πλεονασμῷ τοῦ ν γίνεται θύνω, τὸ ὁρμῶ· καὶ ὄνομα ῥηματικὸν, θῦνος· καὶ πλεονασμῷ ἑτέρου ν, θῦννος· ὅπερ ἐν τῇ κοινῇ συνηθείᾳ καλεῖται θύννα); Schol. Oppianum, Hal. 1.181 (θύννος ἀπὸ τοῦ θύω τὸ ὁρμῶ. θύνοντες· ὁρμῶντες, σφοδρῶς ὁρμῶντες, οἱ μανιωδῶς ὁρμῶντες· θύνω τὸ ὁρμῶ); Schol. Eur., Hec. 261 (καὶ θύω τὸ ἀτάκτως ὁρμῶ, ὅθεν καὶ θῦνος ὁ ἰχθὺς).

Athenaeus, Deipn. VII.50, has a pun on the etymology, and uses θύννος as the object of θύω 1 "to sacrifice" (Ἀντίγονος ὁ Καρύστιος ἐν τῷ περὶ λέξεως (p. 174 Wil) τοὺς Ἁλαιέας λέγει θυσίαν ἐπιτελοῦντας τῷ Ποσειδῶνι ὑπὸ τὴν τῶν θύννων ὥραν, ὅταν εὐαγρήσωσι, θύειν τῷ θεῷ τὸν πρῶτον ἁλόντα θύννον, καὶ τὴν θυσίαν ταύτην καλεῖσθαι θυνναῖον). Since he reports the etymology of θύννος by θύω "to rage", this can be deemed a re-motivation: the fish is indeed the adequate victim because its name can be derived from the verb θῦω1 "to sacrifice" as well as from θύω2 "to rage"