κίτρον
From LSJ
πολλῶν ὁ καιρὸς γίγνεται διδάσκαλος → the critical moment will turn out to be the teacher of many things
English (LSJ)
τό,
A fruit of the κιτρέα, citron, cited as Lat. word by Pamphil. ap.Ath.3.85c, cf. Gal.Vict.Att.10.
German (Pape)
[Seite 1443] τό, die Citrone, gewöhnlicher κιτρόμηλον od. μῆλον Μηδικόν genannt, Ath. III, 85 c; vgl. Lob. Phryn. 469.