ἐμβλητέον
From LSJ
καὶ τὸ σιγᾶν πολλάκις ἐστὶ σοφώτατον ἀνθρώπῳ νοῆσαι → and silence is often the wisest thing for a man to heed, and often is man's best wisdom to be silent, and often keeping silent is the wisest thing for a man to heed
English (LSJ)
A one must put in, Pl.Phlb.62b, Antyll. ap. Orib.46.27.8. II ἐμβλητέος, α, ον, to be put in, set, Hp.Mochl.38.
Greek (Liddell-Scott)
ἐμβλητέον: ῥημ. ἐπίθ., δεῖ ἐμβάλλειν, Πλάτ. Φίληβ. 62Β.