πῖδαξ
From LSJ
ταράσσει τοὺς ἀνθρώπους οὐ τὰ πράγματα, ἀλλὰ τὰ περὶ τῶν πραγμάτων δόγματα → what disturbs people is not what happens, but their view of what happens | it is not the things themselves that disturb men, but their judgements about these things
English (LSJ)
ᾰκος, ἡ,
A spring, fountain, μάχεσθον π. ἀμφ' ὀλίγης Il.16.825, cf. Theoc.7.142, Call.Ap.112, etc.; [γῆ] ἔπυδρος πίδαξι Hdt.4.198 ; οὐρειᾶν πιδάκων . . ῥοαῖς E.Andr.285 (lyr.) ; π. ῥωγός AP6.238 (Apollonid.), cf. 158 (Tull. Sab.), 334 (Leon.), etc.
German (Pape)
[Seite 612] ακος, ἡ, Quell, Quelle; Il. 16, 825; ὀρειᾶν πιδάκων ἐν ῥοαῖς, Eur. Andr. 284; sp. D., wie πίδακα βαιοῦ ῥαγὸς ἔχω, Apollds. 5 (VI, 238); Her. 4, 198, Quellwasser.