τρίπλευρος
From LSJ
μηδενὶ συμφορὰν ὀνειδίσῃς, κοινὴ γὰρ ἡ τύχη καὶ τὸ μέλλον ἀόρατον → never mock a disaster, fate is common to all and the future unknown
English (LSJ)
ον,
A three-sided, Str.5.1.2; Astrol., trine, of aspect, Max.52,447, Cat.Cod.Astr.1.146; facing three ways, of a column on the march, Arr.Tact.28.4,5, Ael.Tact. 36.4,5. II τρίπλευρα, τά, perh. part of a victim, SIG982.22 (Pergam., ii B. C.).
German (Pape)
[Seite 1146] von, mit drei Seiten, dreiseitig, Sp.
Greek (Liddell-Scott)
τρίπλευρος: -ον, ὁ ἔχων τρεῖς πλευράς, σχῆμα τρ. Στράβ. 210, Μάξιμ. π. καταρχ. 52, Ἀρρ. Τακτ. σ. 66.