ἐτυμολογικός
From LSJ
Τοὺς δούλους ἔταξεν ὡρισμένου νομίσματος ὁμιλεῖν ταῖς θεραπαινίσιν → He arranged for his male slaves to have sex with female slaves at a fixed price (Plutarch, Life of Cato the Elder 21.2)
English (LSJ)
ή, όν,
A belonging to ἐτυμολογία, Eust.1799.25; -κά, τά, title of work by Chrysipp. (Stoic.2.9, al.); ἡ-κή the science of etymology, Varro LL7.109; τὸ -κόν an etymological dictionary, EM212.13 (pl.), Sch.Il.13.130 (pl.), etc. Adv. -κῶς Eust.396.15.
German (Pape)
[Seite 1053] ή, όν, zur Etymologie gehörig, darin geschickt, Schol.; τὰ ἐτυμολογικά, Bücher darüber, Schol. Il. 13, 130. Auch adv.